- added instructions on docker usage

.dockerignore

@@ -0,0 +1,30 @@
+**/.classpath
+**/.dockerignore
+**/.env
+**/.git
+**/.gitignore
+**/.project
+**/.settings
+**/.toolstarget
+**/.vs
+**/.vscode
+**/*.*proj.user
+**/*.dbmdl
+**/*.jfm
+**/azds.yaml
+**/bin
+**/charts
+**/docker-compose*
+**/Dockerfile*
+**/node_modules
+**/npm-debug.log
+**/obj
+**/secrets.dev.yaml
+**/values.dev.yaml
+LICENSE
+README.md
+!**/.gitignore
+!.git/HEAD
+!.git/config
+!.git/packed-refs
+!.git/refs/heads/**

.gitignore

@@ -0,0 +1,428 @@
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+##
+## Get latest from https://github.com/github/gitignore/blob/main/VisualStudio.gitignore
+
+# User-specific files
+*.rsuser
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+*.env
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Mono auto generated files
+mono_crash.*
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+
+[Dd]ebug/x64/
+[Dd]ebugPublic/x64/
+[Rr]elease/x64/
+[Rr]eleases/x64/
+bin/x64/
+obj/x64/
+
+[Dd]ebug/x86/
+[Dd]ebugPublic/x86/
+[Rr]elease/x86/
+[Rr]eleases/x86/
+bin/x86/
+obj/x86/
+
+[Ww][Ii][Nn]32/
+[Aa][Rr][Mm]/
+[Aa][Rr][Mm]64/
+[Aa][Rr][Mm]64[Ee][Cc]/
+bld/
+[Oo]bj/
+[Oo]ut/
+[Ll]og/
+[Ll]ogs/
+
+# Build results on 'Bin' directories
+**/[Bb]in/*
+# Uncomment if you have tasks that rely on *.refresh files to move binaries
+# (https://github.com/github/gitignore/pull/3736)
+#!**/[Bb]in/*.refresh
+
+# Visual Studio 2015/2017 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# Visual Studio 2017 auto generated files
+Generated\ Files/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+*.trx
+
+# NUnit
+*.VisualState.xml
+TestResult.xml
+nunit-*.xml
+
+# Approval Tests result files
+*.received.*
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# Benchmark Results
+BenchmarkDotNet.Artifacts/
+
+# .NET Core
+project.lock.json
+project.fragment.lock.json
+artifacts/
+
+# ASP.NET Scaffolding
+ScaffoldingReadMe.txt
+
+# StyleCop
+StyleCopReport.xml
+
+# Files built by Visual Studio
+*_i.c
+*_p.c
+*_h.h
+*.ilk
+*.meta
+*.obj
+*.idb
+*.iobj
+*.pch
+*.pdb
+*.ipdb
+*.pgc
+*.pgd
+*.rsp
+# but not Directory.Build.rsp, as it configures directory-level build defaults
+!Directory.Build.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*_wpftmp.csproj
+*.log
+*.tlog
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+*.VC.VC.opendb
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# Visual Studio Trace Files
+*.e2e
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# AxoCover is a Code Coverage Tool
+.axoCover/*
+!.axoCover/settings.json
+
+# Coverlet is a free, cross platform Code Coverage Tool
+coverage*.json
+coverage*.xml
+coverage*.info
+
+# Visual Studio code coverage results
+*.coverage
+*.coveragexml
+
+# NCrunch
+_NCrunch_*
+.NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# Note: Comment the next line if you want to checkin your web deploy settings,
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
+*.publishproj
+
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# NuGet Symbol Packages
+*.snupkg
+# The packages folder can be ignored because of Package Restore
+**/[Pp]ackages/*
+# except build/, which is used as an MSBuild target.
+!**/[Pp]ackages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/[Pp]ackages/repositories.config
+# NuGet v3's project.json files produces more ignorable files
+*.nuget.props
+*.nuget.targets
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Windows Store app package directories and files
+AppPackages/
+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
+*.appx
+*.appxbundle
+*.appxupload
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!?*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+orleans.codegen.cs
+
+# Including strong name files can present a security risk
+# (https://github.com/github/gitignore/pull/2483#issue-259490424)
+#*.snk
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+ServiceFabricBackup/
+*.rptproj.bak
+
+# SQL Server files
+*.mdf
+*.ldf
+*.ndf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+*.rptproj.rsuser
+*- [Bb]ackup.rdl
+*- [Bb]ackup ([0-9]).rdl
+*- [Bb]ackup ([0-9][0-9]).rdl
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+node_modules/
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
+*.vbw
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+# Visual Studio 6 workspace and project file (working project files containing files to include in project)
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+
+# Visual Studio 6 technical files
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+*.aps
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+**/.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+**/.fake/
+
+# CodeRush personal settings
+**/.cr/personal
+
+# Python Tools for Visual Studio (PTVS)
+**/__pycache__/
+*.pyc
+
+# Cake - Uncomment if you are using it
+#tools/**
+#!tools/packages.config
+
+# Tabs Studio
+*.tss
+
+# Telerik's JustMock configuration file
+*.jmconfig
+
+# BizTalk build output
+*.btp.cs
+*.btm.cs
+*.odx.cs
+*.xsd.cs
+
+# OpenCover UI analysis results
+OpenCover/
+
+# Azure Stream Analytics local run output
+ASALocalRun/
+
+# MSBuild Binary and Structured Log
+*.binlog
+MSBuild_Logs/
+
+# AWS SAM Build and Temporary Artifacts folder
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+
+# NVidia Nsight GPU debugger configuration file
+*.nvuser
+
+# MFractors (Xamarin productivity tool) working folder
+**/.mfractor/
+
+# Local History for Visual Studio
+**/.localhistory/
+
+# Visual Studio History (VSHistory) files
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+
+# BeatPulse healthcheck temp database
+healthchecksdb
+
+# Backup folder for Package Reference Convert tool in Visual Studio 2017
+MigrationBackup/
+
+# Ionide (cross platform F# VS Code tools) working folder
+**/.ionide/
+
+# Fody - auto-generated XML schema
+FodyWeavers.xsd
+
+# VS Code files for those working on multiple tools
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+!.vscode/*.code-snippets
+
+# Local History for Visual Studio Code
+.history/
+
+# Built Visual Studio Code Extensions
+*.vsix
+
+# Windows Installer files from build outputs
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp

OnlyPrompt.Backend/ApiModels/Auth/Models.cs

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+namespace OnlyPrompt.Backend.ApiModels.Auth
+{
+	public record ApiUser(Guid Id, string UserName, string Email, string[] Roles);
+}

OnlyPrompt.Backend/ApiModels/Auth/Requests.cs

@@ -0,0 +1,8 @@
+using OnlyPrompt.Backend.ApiModels.Validators;
+using System.ComponentModel.DataAnnotations;
+
+namespace OnlyPrompt.Backend.ApiModels.Auth
+{
+	public record ApiLoginRequest(string UserNameOrEmail, string Password);
+	public record ApiRegisterRequest([MaxLength(100)] string DisplayName, [MaxLength(100)][NoWhitespace] string? UserName, string Email, string Password);
+}

OnlyPrompt.Backend/ApiModels/Category/Models.cs

@@ -0,0 +1,5 @@
+namespace OnlyPrompt.Backend.ApiModels.Category
+{
+	public record ApiCategory(Guid Id, string Name, string Slug, string? Description);
+	public record ApiMinimalCategory(string Name, string Slug);
+}

OnlyPrompt.Backend/ApiModels/Category/Requests.cs

@@ -0,0 +1,5 @@
+namespace OnlyPrompt.Backend.ApiModels.Category
+{
+	public record ApiCreateCategoryRequest(string Name, string? Slug, string? Description);
+	public record ApiUpdateCategoryRequest(string? Name, string? Slug, string? Description);
+}

OnlyPrompt.Backend/ApiModels/Prompt/FeedSortType.cs

@@ -0,0 +1,8 @@
+namespace OnlyPrompt.Backend.ApiModels.Prompt
+{
+	public enum FeedSortType
+	{
+		Date,
+		Rating
+	}
+}

OnlyPrompt.Backend/ApiModels/Prompt/Models.cs

@@ -0,0 +1,6 @@
+namespace OnlyPrompt.Backend.ApiModels.Prompt
+{
+	public record ApiPrompt(Guid Id, string Title, string Description, string Content, DateTime TimeStamp, Guid CreatorId, string CreatorName, int? TierLevel, string? TierName, double? AverageRating);
+	public record ApiMinimalPrompt(Guid Id, string Title, DateTime TimeStamp, Guid CreatorId, string CreatorName, int? TierLevel, string? TierName, double? AverageRating, bool CanAccess);
+	public record ApiReview(Guid CreatorId, string CreatorName, string? Comment, int Rating);
+}

OnlyPrompt.Backend/ApiModels/Prompt/Requests.cs

@@ -0,0 +1,6 @@
+using OnlyPrompt.Backend.Utils;
+
+namespace OnlyPrompt.Backend.ApiModels.Prompt
+{
+	public record ApiCreatePromptRequest(string Title, string Description, string Content, Identifier Category, int? SubscriptionTier, string Slug);
+}

OnlyPrompt.Backend/ApiModels/Subscription/Models.cs

@@ -0,0 +1,5 @@
+namespace OnlyPrompt.Backend.ApiModels.Subscription
+{
+	public record ApiSubscriptionTier(Guid Id, string Name, int Level, decimal MonthlyPrice, string? Description);
+	public record ApiSubscription(Guid SubscribedToId, string SubscribedToName, ApiSubscriptionTier? CurrentTier);
+}

OnlyPrompt.Backend/ApiModels/Subscription/Requests.cs

@@ -0,0 +1,5 @@
+namespace OnlyPrompt.Backend.ApiModels.Subscription
+{
+	public record ApiCreateSubscriptionTierRequest(string Name, decimal MonthlyPrice, int Level, string? Description);
+	public record ApiUpdateSubscriptionTierRequest(string? Name, decimal? MonthlyPrice, int? Level, string? Description);
+}

OnlyPrompt.Backend/ApiModels/UserProfile/Models.cs

@@ -0,0 +1,4 @@
+namespace OnlyPrompt.Backend.ApiModels.UserProfile
+{
+	public record ApiUserProfile(string DisplayName, string Slug, string? Bio, string AvatarUrl, string? Specialities, double AverageRating, int Subscribers);
+}

OnlyPrompt.Backend/ApiModels/UserProfile/Requests.cs

@@ -0,0 +1,8 @@
+using OnlyPrompt.Backend.ApiModels.Validators;
+using System.ComponentModel.DataAnnotations;
+
+namespace OnlyPrompt.Backend.ApiModels.UserProfile
+{
+	public record ApiUpdateProfileRequest([MaxLength(100)] string? DisplayName, [MaxLength(100)][NoWhitespace] string? Slug, string? Bio, string? AvatarUrl, string? Specialities, bool IsPublic);
+	public record ApiCreateReviewRequest(string? Comment, [Range(1, 5)] int Rating);
+}

OnlyPrompt.Backend/ApiModels/Validators/NoWhitespaceAttribute.cs

@@ -0,0 +1,34 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace OnlyPrompt.Backend.ApiModels.Validators
+{
+	public class NoWhitespaceAttribute : ValidationAttribute
+	{
+		public override bool IsValid(object? value)
+		{
+			if (value is string strValue)
+			{
+				if (strValue.Any(c => char.IsWhiteSpace(c)))
+					return false;
+
+				return true;
+			}
+
+			return true; // If it's not a string, we consider it valid. Use [NoWhitespace] only on string properties.
+		}
+
+		protected override ValidationResult? IsValid(object? value, ValidationContext validationContext)
+		{
+			if(value is string strValue)
+			{
+				if(strValue.Any(c => char.IsWhiteSpace(c)))
+					return new ValidationResult($"{validationContext.DisplayName} should not contain any whitespace characters.");
+
+				return ValidationResult.Success;
+			}
+
+			return ValidationResult.Success; // If it's not a string, we consider it valid. Use [NoWhitespace] only on string properties.
+		}
+	}
+	
+}

OnlyPrompt.Backend/Controllers/AdminController.cs

@@ -0,0 +1,83 @@
+using AutoMapper;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http.HttpResults;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using OnlyPrompt.Backend.Database;
+using OnlyPrompt.Backend.Database.Models;
+
+namespace OnlyPrompt.Backend.Controllers
+{
+	[ApiController]
+	[Route("api/v1/admin")]
+	[Authorize(Roles = ModelConstants.AdminRole)]
+	public class AdminController : BaseController
+	{
+		public AdminController(OnlyPromptContext db, IMapper mapper) : base(db, mapper)
+		{
+		}
+
+		private Task<UserModel?> GetNonAdminUserAsync(Guid id, bool isSysAdmin = false)
+		{
+			return _db.Users.FirstOrDefaultAsync(
+				u => u.Id == id
+				&& (isSysAdmin || u.Roles.Contains(ModelConstants.AdminRole) == false)
+				&& u.Roles.Contains(ModelConstants.SysAdminRole) == false
+			);
+		}
+
+		[HttpPost("users/{userId}/disable")]
+		public async Task<Results<Ok, NotFound<string>>> DisableUserAsync(Guid userId)
+		{
+			var user = await GetNonAdminUserAsync(userId, User.IsInRole(ModelConstants.SysAdminRole));
+			if (user is null)
+				return TypedResults.NotFound("User not found.");
+
+			user.IsLockoutEnabled = true;
+			await _db.SaveChangesAsync();
+			return TypedResults.Ok();
+		}
+
+		[HttpPost("users/{userId}/enable")]
+		public async Task<Results<Ok, NotFound<string>>> EnableUserAsync(Guid userId)
+		{
+			var user = await GetNonAdminUserAsync(userId, User.IsInRole(ModelConstants.SysAdminRole));
+			if (user is null)
+				return TypedResults.NotFound("User not found.");
+
+			user.IsLockoutEnabled = false;
+			await _db.SaveChangesAsync();
+			return TypedResults.Ok();
+		}
+
+		[HttpPut("users/{userId}/roles/{role}")]
+		public async Task<Results<Ok, NotFound<string>>> UpdateUserRolesAsync(Guid userId, string role)
+		{
+			if (ModelConstants.AllRoles.Contains(role) == false)
+				return TypedResults.NotFound($"No such role '{role}'");
+
+			var user = await GetNonAdminUserAsync(userId, User.IsInRole(ModelConstants.SysAdminRole));
+			if (user is null)
+				return TypedResults.NotFound("User not found.");
+
+			user.Roles.Add(role);
+			await _db.SaveChangesAsync();
+			return TypedResults.Ok();
+		}
+
+		[HttpDelete("users/{userId}/roles/{role}")]
+		public async Task<Results<Ok, NotFound<string>>> RemoveUserRoleAsync(Guid userId, string role)
+		{
+			if (ModelConstants.AllRoles.Contains(role) == false)
+				return TypedResults.NotFound($"No such role '{role}'");
+
+			var user = await GetNonAdminUserAsync(userId, User.IsInRole(ModelConstants.SysAdminRole));
+			if (user is null)
+				return TypedResults.NotFound("User not found.");
+
+			user.Roles.Remove(role);
+			await _db.SaveChangesAsync();
+			return TypedResults.Ok();
+		}
+	}
+}

OnlyPrompt.Backend/Controllers/AuthController.cs

@@ -0,0 +1,109 @@
+using AutoMapper;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http.HttpResults;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using OnlyPrompt.Backend.ApiModels.Auth;
+using OnlyPrompt.Backend.Database;
+using OnlyPrompt.Backend.Database.Models;
+using OnlyPrompt.Backend.Services.Jwt;
+using OnlyPrompt.Backend.Utils;
+
+namespace OnlyPrompt.Backend.Controllers
+{
+	[ApiController]
+	[Route("api/v1/auth")]
+	public class AuthController : BaseController
+	{
+		private static readonly CookieOptions AuthCookieOptions = new CookieOptions { Secure = true, HttpOnly = true, IsEssential = true };
+		private readonly IPasswordHasher<UserModel> _passwordHasher;
+		private readonly ITokenService _jwtService;
+		private readonly ILogger<AuthController> _logger;
+
+		public AuthController(OnlyPromptContext db, IPasswordHasher<UserModel> passwordHasher, IMapper mapper, ILogger<AuthController> logger, ITokenService jwtService) : base(db, mapper)
+		{
+			_passwordHasher=passwordHasher;
+			_logger=logger;
+			_jwtService=jwtService;
+		}
+
+
+		[AllowAnonymous]
+		[HttpPost("login")]
+		public async Task<Results<Ok, RedirectHttpResult, BadRequest<string>, NotFound<string>>> LoginAsync([FromBody] ApiLoginRequest request, [FromQuery]string redirect = null)
+		{
+			var user = await FindUserAsync(request.UserNameOrEmail);
+			if (user is null)
+				return TypedResults.NotFound("User not found");
+
+			var verificationResult = _passwordHasher.VerifyHashedPassword(user, user.PasswordHash, request.Password);
+			if (verificationResult == PasswordVerificationResult.Failed)
+				return TypedResults.NotFound("User not found"); // Don't reveal that the user exists
+
+			if (user.IsLockoutEnabled)
+				return TypedResults.BadRequest("User is locked out"); // Don't reveal that the user exists
+
+			var token = _jwtService.BuildToken(user, out var validUntil);
+			this.Response.Cookies.Append("jwt", token, AuthCookieOptions.Copy(c => c.Expires = validUntil));
+			if (string.IsNullOrEmpty(redirect) == false)
+				return TypedResults.Redirect(redirect, false);
+
+			return TypedResults.Ok();
+		}
+
+		[AllowAnonymous]
+		[HttpPost("register")]
+		public async Task<Results<RedirectHttpResult, ValidationProblem, Ok<ApiUser>>> RegisterAsync([FromBody] ApiRegisterRequest request, [FromQuery] string redirect = null)
+		{
+			var existingUser = await FindUserAsync(request.UserName, request.Email);
+			if (existingUser is not null)
+			{
+				var errors = new Dictionary<string, string[]>();
+				
+				if (existingUser.UserName == request.UserName)
+					errors.Add(nameof(request.UserName), ["Username is already taken"]);
+
+				if (existingUser.Email == request.Email)
+					errors.Add(nameof(request.Email), ["Email is already registered"]);
+
+				return TypedResults.ValidationProblem(errors);
+			}
+
+			var id = Guid.CreateVersion7();
+			var slug = await SlugHelper.GenerateUniqueSlugAsync(request.UserName, s => _db.UserProfiles.AnyAsync(up => up.Slug == s), 32);
+			var avatarUrl = $"https://api.dicebear.com/9.x/bottts/svg?seed={id}";
+			var newUser = new UserModel
+			{
+				Id = id,
+				Profile = new UserProfileModel
+				{
+					AvatarUrl = avatarUrl,
+					DisplayName = request.DisplayName,
+					Slug = slug,
+				},
+				Roles = [ModelConstants.UserRole],
+				PasswordHash = null,
+				UserName = request.UserName ?? request.Email,
+				Email = request.Email,
+				IsLockoutEnabled = false,
+			};
+			
+			newUser.PasswordHash = _passwordHasher.HashPassword(newUser, request.Password);
+			_db.Users.Add(newUser);
+			await _db.SaveChangesAsync();
+			if(string.IsNullOrEmpty(redirect) == false)
+				return TypedResults.Redirect(redirect, false);
+
+			return TypedResults.Ok(_mapper.Map<ApiUser>(newUser));
+		}
+
+
+		[HttpPost("logout")]
+		public RedirectHttpResult Logout()
+		{
+			this.Response.Cookies.Delete("jwt", AuthCookieOptions);
+			return TypedResults.Redirect("login");
+		}
+	}
+}

OnlyPrompt.Backend/Controllers/BaseController.cs

@@ -0,0 +1,45 @@
+using AutoMapper;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using OnlyPrompt.Backend.Database;
+using OnlyPrompt.Backend.Database.Models;
+using OnlyPrompt.Backend.Utils;
+
+namespace OnlyPrompt.Backend.Controllers
+{
+	public abstract class BaseController : Controller
+	{
+		protected OnlyPromptContext _db;
+		protected IMapper _mapper;
+
+		public BaseController(OnlyPromptContext db, IMapper mapper)
+		{
+			_db=db;
+			_mapper=mapper;
+		}
+
+		public Task<UserModel?> FindUserAsync(Guid id) => _db.Users.FirstOrDefaultAsync(x => x.Id == id);
+		public Task<UserModel?> FindUserAsync(string userName, string email) => _db.Users.FirstOrDefaultAsync(x => x.Email == email || x.UserName == userName);
+		public Task<UserModel?> FindUserAsync(string emailOrUsername) => _db.Users.FirstOrDefaultAsync(x => x.Email == emailOrUsername || x.UserName == emailOrUsername);
+
+		public async Task<UserProfileModel?> GetUserProfileAsync()
+		{
+			var id = User.GetUserId();
+			if (id.HasValue == false)
+				return null;
+
+			var profile = await _db.UserProfiles.FirstOrDefaultAsync(x => x.Id == id.Value);
+			return profile;
+		}
+
+		public async Task<UserModel?> GetUserAsync()
+		{
+			var id = User.GetUserId();
+			if (id.HasValue == false)
+				return null;
+
+			var user = await _db.Users.FindAsync(id.Value);
+			return user;
+		}
+	}
+}

OnlyPrompt.Backend/Controllers/CategoryController.cs

@@ -0,0 +1,123 @@
+using AutoMapper;
+using AutoMapper.QueryableExtensions;
+using Microsoft.AspNetCore.Authentication.JwtBearer;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http.HttpResults;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using OnlyPrompt.Backend.ApiModels.Category;
+using OnlyPrompt.Backend.Database;
+using OnlyPrompt.Backend.Database.Models;
+using OnlyPrompt.Backend.Utils;
+using System.ComponentModel.DataAnnotations;
+
+namespace OnlyPrompt.Backend.Controllers
+{
+	[ApiController]
+	[Route("api/v1/categories")]
+	[Authorize(Roles = ModelConstants.AdminRole, AuthenticationSchemes = JwtBearerDefaults.AuthenticationScheme)]
+	public class CategoryController : BaseController
+	{
+		private static ValidationProblem SlugExistsProblem = TypedResults.ValidationProblem(new Dictionary<string, string[]>
+		{
+			{ nameof(CategoryModel.Slug), new[] { "Slug already exists." } }
+		});
+
+		public CategoryController(OnlyPromptContext db, IMapper mapper) : base(db, mapper)
+		{
+		}
+
+		[HttpGet("minimal")]
+		[Authorize(Roles = ModelConstants.UserRole)]
+		public async Task<ApiMinimalCategory[]> GetMinimalCategoriesAsync()
+		{
+			var categories = await _db.Categories
+				.ProjectTo<ApiMinimalCategory>(_mapper.ConfigurationProvider)
+				.ToArrayAsync();
+
+			return categories;
+		}
+
+		[HttpGet]
+		[Authorize(Roles = ModelConstants.UserRole)]
+		public async Task<ApiCategory[]> GetCategoriesAsync([Range(0, double.MaxValue)][FromQuery] int offset = 0, [Range(1, 100)][FromQuery] int limit = 20)
+		{
+			var categories = await _db.Categories
+				.OrderBy(c => c.Id)
+				.Skip(offset)
+				.Take(limit)
+				.ProjectTo<ApiCategory>(_mapper.ConfigurationProvider)
+				.ToArrayAsync();
+
+			return categories;
+		}
+
+		[HttpPost]
+		public async Task<Results<Ok<ApiCategory>, ValidationProblem>> CreateCategoryAsync([FromBody] ApiCreateCategoryRequest request)
+		{
+			var exists = await _db.Categories.AnyAsync(c => c.Slug == request.Slug);
+			if (exists)
+				return SlugExistsProblem;
+
+			var model = _mapper.Map<CategoryModel>(request);
+			if (string.IsNullOrWhiteSpace(model.Slug))
+				model.Slug = await SlugHelper.GenerateUniqueSlugAsync(request.Name, slug => _db.Categories.AnyAsync(c => c.Slug == slug), ModelConstants.MaxSlugLength);
+
+			_db.Categories.Add(model);
+			await _db.SaveChangesAsync();
+			return TypedResults.Ok(_mapper.Map<ApiCategory>(model));
+		}
+
+		[HttpPut("{id}")]
+		public async Task<Results<Ok<ApiCategory>, NotFound<string>, ValidationProblem>> UpdateCategoryAsync(Identifier id, [FromBody] ApiUpdateCategoryRequest request)
+		{
+			var category = await _db.Categories.FindByIdentifierAsync(id);
+			if (category is null)
+				return TypedResults.NotFound("Category not found");
+
+			if (string.IsNullOrWhiteSpace(request.Name) == false)
+				category.Name = request.Name;
+			
+			if(string.IsNullOrWhiteSpace(request.Description) == false)
+				category.Description = request.Description;
+
+			if (string.IsNullOrWhiteSpace(request.Slug) == false && request.Slug != category.Slug)
+			{
+				var exists = await _db.Categories.AnyAsync(c => c.Slug == request.Slug && c.Id != category.Id);
+				if (exists)
+					return SlugExistsProblem;
+
+				category.Slug = request.Slug;
+			}
+			
+			await _db.SaveChangesAsync();
+			return TypedResults.Ok(_mapper.Map<ApiCategory>(category));
+		}
+
+		[HttpDelete("{id}")]
+		public async Task<Results<NoContent, BadRequest<string>, NotFound<string>>> DeleteCategoryAsync(Identifier id, [FromQuery] Identifier? replaceWith = null)
+		{
+			var hasPrompts = await _db.Prompts.AnyAsync(p => p.CategoryId == id.Id);
+			if (hasPrompts)
+			{
+				if (replaceWith.HasValue == false)
+					return TypedResults.BadRequest("Category has associated prompts. Provide a replacement category to reassign them to.");
+
+				var replacement = await _db.Categories.FindByIdentifierAsync(replaceWith.Value);
+				if(replacement is null)
+					return TypedResults.NotFound("Replacement category not found.");
+
+				await _db.Prompts.Where(p => p.CategoryId == id.Id)
+					.ExecuteUpdateAsync(p => p.SetProperty(p => p.CategoryId, replacement.Id));
+			}
+
+			var count = await _db.Categories.OfIdentifer(id)
+				.ExecuteDeleteAsync();
+
+			if (count == 0)
+				return TypedResults.NotFound("Category not found");
+
+			return TypedResults.NoContent();
+		}
+	}
+}

OnlyPrompt.Backend/Controllers/FeedController.cs

@@ -0,0 +1,73 @@
+using AutoMapper;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http.HttpResults;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using OnlyPrompt.Backend.ApiModels.Prompt;
+using OnlyPrompt.Backend.Database;
+using OnlyPrompt.Backend.Utils;
+using System.ComponentModel.DataAnnotations;
+
+namespace OnlyPrompt.Backend.Controllers
+{
+	[ApiController]
+	[Route("api/v1/feed")]
+	[Authorize(Roles = ModelConstants.UserRole)]
+	public class FeedController : BaseController
+	{
+		public FeedController(OnlyPromptContext db, IMapper mapper) : base(db, mapper)
+		{
+		}
+
+		[HttpGet]
+		public async Task<ApiMinimalPrompt[]> GetFeedAsync(
+			[Range(0, double.MaxValue)][FromQuery]int offset = 0, 
+			[Range(1, 100)][FromQuery]int limit = 20,
+			[FromQuery]FeedSortType sortBy = FeedSortType.Date,
+			[FromQuery]bool ascending = false,
+			[FromQuery]Identifier? category = null,
+			[FromQuery]DateTime? fromDate = null,
+			[FromQuery]DateTime? toDate = null
+		)
+		{
+			var userId = User.GetUserId();
+			var query = _db.Prompts
+				.Where(
+					x => x.Creator.Subscribers.Any(s => s.SubscriberId == userId)
+					&& x.CreatorId != userId
+				);
+
+			if (category.HasValue)
+				query = query.Where(x => category.Value.Id.HasValue ? x.CategoryId == category.Value.Id.Value : x.Category.Slug == category.Value.Slug);
+
+			if (fromDate.HasValue)
+				query = query.Where(x => x.UpdatedAt >= fromDate.Value);
+		
+			if (toDate.HasValue)
+				query = query.Where(x => x.UpdatedAt <= toDate.Value);
+
+			query = sortBy switch { 
+				FeedSortType.Date => query.OrderBy(x => x.UpdatedAt, ascending),
+				FeedSortType.Rating => query.OrderBy(x => x.Reviews.Average(r => (double?)r.Rating) ?? 2.5, ascending),
+				_ => query
+			};
+
+			var prompts = await query
+				.Skip(offset)
+				.Take(limit)
+				.Select(x => new ApiMinimalPrompt(
+					x.Id,
+					x.Title,
+					x.UpdatedAt,
+					x.CreatorId,
+					x.Creator.Profile.DisplayName,
+					x.SubscriptionTier.Level,
+					x.SubscriptionTier.Name,
+					x.Reviews.Average(r => (double?)r.Rating),
+					x.SubscriptionTier == null || x.Creator.Subscribers.Any(s => s.SubscriberId == userId && x.SubscriptionTier.Level < s.SubscriptionTier.Level)
+				)).ToArrayAsync();
+
+			return prompts;
+		}
+	}
+}

OnlyPrompt.Backend/Controllers/ProfileController.cs

@@ -0,0 +1,78 @@
+using AutoMapper;
+using AutoMapper.QueryableExtensions;
+using Microsoft.AspNetCore.Authentication.JwtBearer;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http.HttpResults;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using OnlyPrompt.Backend.ApiModels.UserProfile;
+using OnlyPrompt.Backend.Database;
+using OnlyPrompt.Backend.Database.Models;
+using OnlyPrompt.Backend.Utils;
+
+namespace OnlyPrompt.Backend.Controllers
+{
+	[ApiController]
+	[Route("api/v1/profiles")]
+	[Authorize(Roles = ModelConstants.UserRole)]
+	public class ProfileController : BaseController
+	{
+		private static ValidationProblem SlugExistsProblem = TypedResults.ValidationProblem(new Dictionary<string, string[]>
+		{
+			{ nameof(UserProfileModel.Slug), new[] { "Slug already exists." } }
+		});
+
+		public ProfileController(OnlyPromptContext db, IMapper mapper) : base(db, mapper)
+		{
+		}
+
+		[HttpGet("{id}")]
+		public async Task<Results<NotFound<string>, Ok<ApiUserProfile>>> GetProfileAsync(Identifier id)
+		{
+			var userId = User.GetUserId();
+			var profile = await _db.UserProfiles.OfIdentifer(id)
+				.Where(up => up.IsPublic || up.Id == userId)
+				.ProjectTo<ApiUserProfile>(_mapper.ConfigurationProvider)
+				.FirstOrDefaultAsync();
+
+			if (profile is null)
+				return TypedResults.NotFound("Profile not found or is private.");
+
+			return TypedResults.Ok(profile);
+		}
+
+		[HttpPut]
+		public async Task<Results<ValidationProblem, NotFound<string>, Ok<ApiUserProfile>>> UpdateProfileAsync([FromBody] ApiUpdateProfileRequest request)
+		{
+			var self = await GetUserProfileAsync();
+			if (self is null)
+				return TypedResults.NotFound("Profile not found.");
+
+			if (string.IsNullOrEmpty(request.Slug) == false)
+			{
+				if (await _db.UserProfiles.AnyAsync(up => up.Slug == request.Slug && up.Id != self.Id))
+					return SlugExistsProblem;
+			
+				self.Slug = request.Slug;
+			}
+
+			if(string.IsNullOrEmpty(request.AvatarUrl) == false)
+				self.AvatarUrl = request.AvatarUrl;
+
+			if(string.IsNullOrEmpty(request.Bio) == false)
+				self.Bio = request.Bio;
+
+			if(string.IsNullOrEmpty(request.Specialities) == false)
+				self.Specialities = request.Specialities;
+
+			if (string.IsNullOrEmpty(request.DisplayName) == false)
+				self.DisplayName = request.DisplayName;
+
+			self.IsPublic = request.IsPublic;
+			await _db.SaveChangesAsync();
+			var result = _mapper.Map<ApiUserProfile>(self);
+			return TypedResults.Ok(result);
+		}
+
+	}
+}

OnlyPrompt.Backend/Controllers/PromptController.cs

@@ -0,0 +1,183 @@
+using AutoMapper;
+using AutoMapper.QueryableExtensions;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http.HttpResults;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using OnlyPrompt.Backend.ApiModels.Prompt;
+using OnlyPrompt.Backend.ApiModels.UserProfile;
+using OnlyPrompt.Backend.Database;
+using OnlyPrompt.Backend.Database.Models;
+using OnlyPrompt.Backend.Utils;
+using System.ComponentModel.DataAnnotations;
+
+namespace OnlyPrompt.Backend.Controllers
+{
+	[ApiController]
+	[Route("api/v1/prompts")]
+	[Authorize(Roles = ModelConstants.UserRole)]
+	public class PromptController : BaseController
+	{
+		public PromptController(OnlyPromptContext db, IMapper mapper) : base(db, mapper)
+		{
+		}
+
+		private IQueryable<PromptModel> GetAccessiblePrompts(Guid userId)
+		{
+			return _db.Prompts.Where(
+				p => p.SubscriptionTier == null
+				|| p.Creator.Subscribers.Any(
+					sub => sub.SubscriberId == userId
+					&& p.SubscriptionTier!.Level <= sub.SubscriptionTier!.Level
+				)
+			);
+		}
+
+		[HttpGet("{id}")]
+		public async Task<Results<Ok<ApiPrompt>, NotFound<string>>> GetPromptAsync(Identifier id)
+		{
+			var userId = User.GetUserId();
+			var prompt = await GetAccessiblePrompts(userId.Value)
+				.OfIdentifer(id)
+				.FirstOrDefaultAsync();
+
+			if (prompt is null)
+				return TypedResults.NotFound("Prompt not found or no permission");
+
+			var apiPrompt = _mapper.Map<ApiPrompt>(prompt);
+			return TypedResults.Ok(apiPrompt);
+		}
+
+		[HttpDelete("{id}")]
+		public async Task<Results<NoContent, NotFound<string>>> DeletePromptAsync(Identifier id)
+		{
+			var userId = User.GetUserId();
+			var isAdmin = User.IsInRole(ModelConstants.AdminRole);
+			var count = await _db.Prompts
+				.OfIdentifer(id)
+				.Where(p => p.CreatorId == userId || isAdmin)
+				.ExecuteDeleteAsync();
+
+			if (count == 0)
+				return TypedResults.NotFound("Prompt not found or no permission");
+
+			return TypedResults.NoContent();
+		}
+
+		[HttpPost]
+		public async Task<Results<Ok<ApiPrompt>, NotFound<string>>> CreatePromptAsync([FromBody] ApiCreatePromptRequest request)
+		{
+			var userId = User.GetUserId();
+
+			var category = await _db.Categories.FindByIdentifierAsync(request.Category);
+			if (category is null)
+				return TypedResults.NotFound("Category not found");
+
+			SubscriptionTierModel? subscriptionTier = null;
+			if (request.SubscriptionTier.HasValue)
+			{
+				subscriptionTier = await _db.SubscriptionTiers.FirstOrDefaultAsync(
+					t => t.Level == request.SubscriptionTier.Value
+					&& t.UserId == userId
+				);
+
+				if (subscriptionTier is null)
+					return TypedResults.NotFound("Subscription tier not found");
+			}
+
+			var slug = request.Slug;
+			if (string.IsNullOrEmpty(slug))
+				slug = await SlugHelper.GenerateUniqueSlugAsync(request.Title, slug => _db.Prompts.AnyAsync(p => p.Slug == slug), ModelConstants.MaxSlugLength);
+
+			var prompt = new PromptModel
+			{
+				Id = Guid.NewGuid(),
+				Title = request.Title,
+				Description = request.Description,
+				Prompt = request.Content,
+				CreatorId = userId.Value,
+				SubscriptionTier = subscriptionTier,
+				Category = category,
+				Slug = slug
+			};
+
+			_db.Prompts.Add(prompt);
+			await _db.SaveChangesAsync();
+			var apiPrompt = _mapper.Map<ApiPrompt>(prompt);
+			return TypedResults.Ok(apiPrompt);
+		}
+
+		[HttpGet("{id}/reviews")]
+		public async Task<Ok<ApiReview[]>> GetReviewsAsync(Identifier id, [FromQuery] int offset = 0, [Range(1, 200)][FromQuery] int limit = 20)
+		{
+			var userId = User.GetUserId();
+			var accessiblePrompts = GetAccessiblePrompts(userId!.Value);
+			var reviews = await accessiblePrompts.Select(x => x.Reviews)
+				.Skip(offset)
+				.Take(limit)
+				.ProjectTo<ApiReview>(_mapper.ConfigurationProvider)
+				.ToArrayAsync();
+
+			return TypedResults.Ok(reviews);
+		}
+
+		[HttpPut("{id}/reviews")]
+		public async Task<Results<Ok<ApiReview>, BadRequest<string>, NotFound<string>>> AddReviewAsync(Identifier id, [FromBody] ApiCreateReviewRequest request)
+		{
+			var userId = User.GetUserId();
+			var prompt = await GetAccessiblePrompts(userId!.Value)
+				.OfIdentifer(id)
+				.FirstOrDefaultAsync();
+
+			if (prompt is null)
+				return TypedResults.NotFound("Prompt not found or no permission");
+
+			if(prompt.CreatorId == userId)
+				return TypedResults.BadRequest("Cannot review your own prompt");
+
+			var review = await _db.Reviews.FirstOrDefaultAsync(
+				r => r.PromptId == prompt.Id
+				&& r.ReviewerId == userId
+			);
+
+			if (review is null)
+			{
+				review = new ReviewModel
+				{
+					PromptId = prompt.Id,
+					ReviewerId = userId.Value,
+					Comment = request.Comment,
+					Rating = request.Rating
+				};
+
+				_db.Reviews.Add(review);
+			}
+			else
+			{
+				review.Comment = request.Comment;
+				review.Rating = request.Rating;
+			}
+
+			await _db.SaveChangesAsync();
+			var apiReview = _mapper.Map<ApiReview>(review);
+			return TypedResults.Ok(apiReview);
+		}
+
+		[HttpDelete("{promptId}/reviews/{reviewerId}")]
+		public async Task<Results<NoContent, NotFound<string>>> DeleteReviewAsync(Identifier promptId, Guid reviewerId)
+		{
+			var userId = User.GetUserId();
+			var isAdmin = User.IsInRole(ModelConstants.AdminRole);
+			var count = await _db.Reviews
+				.Where(
+					r => (promptId.Id.HasValue ? r.PromptId == promptId.Id : r.Prompt.Slug == promptId.Slug)
+					&& (r.ReviewerId == reviewerId || isAdmin)
+				)
+				.ExecuteDeleteAsync();
+
+			if (count == 0)
+				return TypedResults.NotFound("Review not found or no permission");
+			return TypedResults.NoContent();
+		}
+	}
+}

OnlyPrompt.Backend/Controllers/SubscriptionController.cs

@@ -0,0 +1,180 @@
+using AutoMapper;
+using AutoMapper.QueryableExtensions;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http.HttpResults;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using OnlyPrompt.Backend.ApiModels.Subscription;
+using OnlyPrompt.Backend.Database;
+using OnlyPrompt.Backend.Database.Models;
+using OnlyPrompt.Backend.Utils;
+using System.ComponentModel.DataAnnotations;
+using System.Formats.Asn1;
+
+namespace OnlyPrompt.Backend.Controllers
+{
+	[ApiController]
+	[Route("api/v1/subscriptions")]
+	[Authorize(Roles = ModelConstants.UserRole)]
+	public class SubscriptionController : BaseController
+	{
+		private static ValidationProblem TierLevelExistsProblem = TypedResults.ValidationProblem(new Dictionary<string, string[]>
+		{
+			{ nameof(SubscriptionTierModel.Level), new[] { "Tier with this level already exists." } }
+		});
+		public SubscriptionController(OnlyPromptContext db, IMapper mapper) : base(db, mapper)
+		{
+		}
+
+		[HttpPut("{userId}/{level}")]
+		public async Task<Results<Ok, BadRequest<string>, NotFound<string>>> SubscribeAsync(Identifier subscribeToId, int? level = null)
+		{
+			var userId = User.GetUserId();
+			var subscribeTo = await _db.Users.Include(x => x.SubscriptionTiers.Where(st => st.Level == level))
+			.FirstOrDefaultAsync(
+				user => subscribeToId.Id.HasValue ? user.Id == subscribeToId.Id.Value : user.Profile.Slug == subscribeToId.Slug
+			);
+
+			if (subscribeTo is null)
+				return TypedResults.NotFound($"No user found with identifier {subscribeToId}");
+
+			if (subscribeTo.Id == userId)
+				return TypedResults.BadRequest("Cannot subscribe to yourself");
+
+			SubscriptionTierModel? tier = subscribeTo.SubscriptionTiers.FirstOrDefault();
+			if (level.HasValue && tier is null)
+				return TypedResults.NotFound($"No subscription tier found for user {subscribeToId} with level {level.Value}");
+
+			var existingSubscription = await _db.Subscriptions.FirstOrDefaultAsync(
+				sub => subscribeToId.Id.HasValue ? sub.SubscribedToId == subscribeToId.Id.Value : sub.SubscribedTo.Profile.Slug == subscribeToId.Slug
+				&& sub.SubscriberId == userId
+			);
+
+			if (existingSubscription is null)
+			{
+				existingSubscription = new SubscriptionModel
+				{
+					SubscribedTo = subscribeTo,
+					SubscriberId = userId.Value,
+					SubscriptionTier = tier
+				};
+
+				_db.Subscriptions.Add(existingSubscription);
+			}
+			else
+			{
+				existingSubscription.SubscriptionTier = tier;
+			}
+
+			await _db.SaveChangesAsync();
+			return TypedResults.Ok();
+		}
+
+		[HttpGet]
+		public async Task<ApiSubscription[]> GetSubscriptionsAsync([Range(0, double.MaxValue)]int offset = 0, [Range(1, 100)]int limit = 20)
+		{
+			var userId = User.GetUserId();
+			var subscriptions = await _db.Subscriptions
+				.Where(x => x.SubscriberId == userId)
+				.OrderBy(x => x.SubscribedToId)
+				.Skip(offset)
+				.Take(limit)
+				.ProjectTo<ApiSubscription>(_mapper.ConfigurationProvider)
+				.ToArrayAsync();
+
+			return subscriptions;
+		}
+
+		[HttpGet("{userId}")]
+		public async Task<ApiSubscription?> GetCurrentSubscriptionAsync(Identifier subscribeToId)
+		{
+			var userId = User.GetUserId();
+			var subscription = await _db.Subscriptions
+				.Where(
+					sub => subscribeToId.Id.HasValue ? sub.SubscribedToId == subscribeToId.Id.Value : sub.SubscribedTo.Profile.Slug == subscribeToId.Slug
+					&& sub.SubscriberId == userId
+				)
+				.ProjectTo<ApiSubscription>(_mapper.ConfigurationProvider)
+				.FirstOrDefaultAsync();
+
+			return subscription;
+		}
+
+		[HttpDelete("{userId}")]
+		public async Task<Results<Ok, NotFound<string>>> UnsubscribeAsync(Identifier subscribeToId)
+		{
+			var userId = User.GetUserId();
+			var count = await _db.Subscriptions
+				.Where(
+					sub => subscribeToId.Id.HasValue ? sub.SubscribedToId == subscribeToId.Id.Value : sub.SubscribedTo.Profile.Slug == subscribeToId.Slug
+					&& sub.SubscriberId == userId
+				)
+				.ExecuteDeleteAsync();
+
+			if (count == 0)
+				return TypedResults.NotFound($"No subscription found for user {subscribeToId}");
+
+			return TypedResults.Ok();
+		}
+
+		[HttpPost("tiers")]
+		public async Task<Results<Ok<ApiSubscriptionTier>, ValidationProblem>> CreateOrUpdateSubscriptionTierAsync([FromBody] ApiCreateSubscriptionTierRequest tier)
+		{
+			var userId = User.GetUserId();
+			var levelExists = await _db.SubscriptionTiers.AnyAsync(t => t.UserId == userId && t.Level == tier.Level);
+			if (levelExists)
+				return TierLevelExistsProblem;
+
+			var model = _mapper.Map<SubscriptionTierModel>(tier);
+			model.UserId = userId!.Value;
+			_db.SubscriptionTiers.Add(model);
+			await _db.SaveChangesAsync();
+			return TypedResults.Ok(_mapper.Map<ApiSubscriptionTier>(model));
+		}
+
+		[HttpPut("tiers/{id}")]
+		public async Task<Results<Ok<ApiSubscriptionTier>, NotFound<string>, ValidationProblem>> UpdateSubscriptionTierAsync(Guid id, [FromBody] ApiUpdateSubscriptionTierRequest tier)
+		{
+			var userId = User.GetUserId();
+			var existingTier = await _db.SubscriptionTiers.FirstOrDefaultAsync(t => t.Id == id && t.UserId == userId);
+			if (existingTier is null)
+				return TypedResults.NotFound($"No subscription tier found with id {id}");
+
+			if (existingTier.Level != tier.Level)
+			{
+				var levelExists = await _db.SubscriptionTiers.AnyAsync(t => t.UserId == userId && t.Level == tier.Level);
+				if (levelExists)
+					return TierLevelExistsProblem;
+			}
+
+			if (string.IsNullOrEmpty(tier.Name) == false)
+				existingTier.Name = tier.Name;
+
+			if (string.IsNullOrEmpty(tier.Description) == false)
+				existingTier.Description = tier.Description;
+
+			if (tier.Level.HasValue)
+				existingTier.Level = tier.Level.Value;
+			
+			if (tier.MonthlyPrice.HasValue)
+				existingTier.MonthlyPrice = tier.MonthlyPrice.Value;
+			
+			await _db.SaveChangesAsync();
+			return TypedResults.Ok(_mapper.Map<ApiSubscriptionTier>(existingTier));
+		}
+
+		[HttpDelete("tiers/{id}")]
+		public async Task<Results<Ok, NotFound<string>>> DeleteSubscriptionTierAsync(Guid id)
+		{
+			var userId = User.GetUserId();
+			var count = await _db.SubscriptionTiers
+				.Where(t => t.Id == id && t.UserId == userId)
+				.ExecuteDeleteAsync();
+
+			if (count == 0)
+				return TypedResults.NotFound($"No subscription tier found with id {id}");
+
+			return TypedResults.Ok();
+		}
+	}
+}

OnlyPrompt.Backend/Database/Core/EntityBase.cs

@@ -0,0 +1,15 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace OnlyPrompt.Backend.Database.Core
+{
+	public class EntityBase : IEntity, ITrackableEntity
+	{
+		[Key]
+		[DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+		public Guid Id { get; set; }
+
+		public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
+		public DateTime UpdatedAt { get; set; } = DateTime.UtcNow;
+	}
+}

OnlyPrompt.Backend/Database/Core/IEntity.cs

@@ -0,0 +1,7 @@
+namespace OnlyPrompt.Backend.Database.Core
+{
+	public interface IEntity
+	{
+		public Guid  Id { get; }
+	}
+}

OnlyPrompt.Backend/Database/Core/IHasSlug.cs

@@ -0,0 +1,7 @@
+namespace OnlyPrompt.Backend.Database.Core
+{
+	public interface IHasSlug
+	{
+		public string Slug { get; set; }
+	}
+}

OnlyPrompt.Backend/Database/Core/ITrackableEntity.cs

@@ -0,0 +1,8 @@
+namespace OnlyPrompt.Backend.Database.Core
+{
+	public interface ITrackableEntity 
+	{
+		public DateTime CreatedAt { get; set; }
+		public DateTime UpdatedAt { get; set; }
+	}
+}

OnlyPrompt.Backend/Database/ModelConstants.cs

@@ -0,0 +1,14 @@
+using System.Collections.Frozen;
+
+namespace OnlyPrompt.Backend.Database
+{
+	public static class ModelConstants
+	{
+		public const int MaxSlugLength = 100;
+		public const string UserRole = "user";
+		public const string AdminRole = "admin";
+		public const string SysAdminRole = "sys-admin";
+
+		public static readonly FrozenSet<string> AllRoles = FrozenSet.Create(StringComparer.OrdinalIgnoreCase, UserRole, AdminRole, SysAdminRole);
+	}
+}

OnlyPrompt.Backend/Database/Models/CategoryModel.cs

@@ -0,0 +1,19 @@
+using Microsoft.EntityFrameworkCore;
+using OnlyPrompt.Backend.Database.Core;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace OnlyPrompt.Backend.Database.Models
+{
+	[Index(nameof(Slug), IsUnique = true)]
+	public class CategoryModel : EntityBase, IHasSlug
+	{
+		[MaxLength(ModelConstants.MaxSlugLength)]
+		[Column(TypeName = "citext")]
+		public required string Slug { get; set; }
+		public required string Name { get; set; }
+		public string? Description { get; set; }
+
+		public virtual IList<PromptModel> Prompts { get; set; } = new List<PromptModel>();
+	}
+}

OnlyPrompt.Backend/Database/Models/PromptModel.cs

@@ -0,0 +1,45 @@
+using Microsoft.EntityFrameworkCore;
+using OnlyPrompt.Backend.Database.Core;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace OnlyPrompt.Backend.Database.Models
+{
+	[Index(nameof(Slug), IsUnique = true)]
+	public class PromptModel : EntityBase, IHasSlug
+	{
+		[Required]
+		[ForeignKey(nameof(Creator))]
+		public Guid CreatorId { get; set; }
+
+		[DeleteBehavior(DeleteBehavior.Cascade)]
+		public virtual UserModel Creator { get; set; }
+
+		[Required]
+		[ForeignKey(nameof(Category))]
+		public Guid CategoryId { get; set; }
+
+		[DeleteBehavior(DeleteBehavior.Cascade)]
+		public virtual CategoryModel Category { get; set; }
+
+		[MaxLength(200)]
+		public required string Title { get; set; }	
+
+		[MaxLength(4000)]
+		public required string Prompt { get; set; }
+
+		[MaxLength(1000)]
+		public required string Description { get; set; }
+
+		[MaxLength(ModelConstants.MaxSlugLength)]
+		[Column(TypeName = "citext")]
+		public required string Slug { get; set; }
+
+		[ForeignKey(nameof(SubscriptionTier))]
+		public Guid? SubscriptionTierId { get; set; }
+
+		[DeleteBehavior(DeleteBehavior.SetNull)]
+		public virtual SubscriptionTierModel? SubscriptionTier { get; set; }
+		public virtual IList<ReviewModel> Reviews { get; set; } = new List<ReviewModel>();
+	}
+}

OnlyPrompt.Backend/Database/Models/ReviewModel.cs

@@ -0,0 +1,34 @@
+using Microsoft.EntityFrameworkCore;
+using OnlyPrompt.Backend.Database.Core;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace OnlyPrompt.Backend.Database.Models
+{
+	[PrimaryKey(nameof(ReviewerId), nameof(PromptId))]
+	public class ReviewModel	: ITrackableEntity
+	{
+		public DateTime CreatedAt { get; set; }
+		public DateTime UpdatedAt { get; set; }
+
+		[Required]
+		[ForeignKey(nameof(Reviewer))]
+		public Guid ReviewerId { get; set; }
+
+		[DeleteBehavior(DeleteBehavior.Cascade)]
+		public virtual UserModel Reviewer { get; set; }
+
+		[Required]
+		[ForeignKey(nameof(Prompt))]
+		public Guid PromptId { get; set; }
+
+		[DeleteBehavior(DeleteBehavior.Cascade)]
+		public virtual PromptModel Prompt { get; set; }
+
+		[Range(1, 5)]
+		public int Rating { get; set; }
+
+		[MaxLength(200)]
+		public string? Comment { get; set; } = null;
+	}
+}

OnlyPrompt.Backend/Database/Models/SubscriptionModel.cs

@@ -0,0 +1,32 @@
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace OnlyPrompt.Backend.Database.Models
+{
+	[Table("UserSubscriptions")]
+	[PrimaryKey(nameof(SubscriberId), nameof(SubscribedToId))]
+	public class SubscriptionModel
+	{
+		[Required]
+		[ForeignKey(nameof(SubscribedTo))]
+		public Guid SubscribedToId { get; set; }
+
+		[DeleteBehavior(DeleteBehavior.Cascade)]
+		public virtual UserModel SubscribedTo { get; set; }
+
+		[Required]
+		[ForeignKey(nameof(Subscriber))]
+		public Guid SubscriberId { get; set; }
+
+		[DeleteBehavior(DeleteBehavior.Cascade)]
+		public virtual UserModel Subscriber { get; set; }
+
+
+		[ForeignKey(nameof(SubscriptionTier))]
+		public virtual Guid? SubscriptionTierId { get; set; }
+
+		[DeleteBehavior(DeleteBehavior.SetNull)]
+		public virtual SubscriptionTierModel? SubscriptionTier { get; set; }
+	}
+}

OnlyPrompt.Backend/Database/Models/SubscriptionTierModel.cs

@@ -0,0 +1,30 @@
+using Microsoft.EntityFrameworkCore;
+using OnlyPrompt.Backend.Database.Core;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace OnlyPrompt.Backend.Database.Models
+{
+	[Index(nameof(Level), nameof(UserId), IsUnique = true)]
+	public class SubscriptionTierModel : EntityBase
+	{
+		[Required]
+		public required string Name { get; set; }
+
+		[MaxLength(1000)]
+		public string? Description { get; set; }
+
+		[Required]
+		[ForeignKey(nameof(User))]
+		public Guid UserId { get; set; }
+
+		[DeleteBehavior(DeleteBehavior.Cascade)]
+		public virtual UserModel User { get; set; }
+
+		public decimal MonthlyPrice { get; set; }
+		public int Level { get; set; }
+
+		public virtual IList<PromptModel> Prompts { get; set; } = new List<PromptModel>();
+		public virtual IList<SubscriptionModel> Subscriptions { get; set; } = new List<SubscriptionModel>();
+	}
+}

OnlyPrompt.Backend/Database/Models/UserModel.cs

@@ -0,0 +1,31 @@
+using Microsoft.EntityFrameworkCore;
+using OnlyPrompt.Backend.Database.Core;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace OnlyPrompt.Backend.Database.Models
+{
+	[Index(nameof(Email), IsUnique = true)]
+	[Index(nameof(UserName), IsUnique = true)]
+	public class UserModel : EntityBase
+	{
+		[MaxLength(100)]
+		[Column(TypeName = "citext")]
+		public required string UserName { get; set; }
+
+		[Column(TypeName = "citext")]
+		public required string Email { get; set; }
+		public required string PasswordHash { get; set; }
+		public required List<string> Roles { get; set; } = new List<string>(); 
+
+		[Required]
+		public required virtual UserProfileModel Profile { get; set; }
+
+		public virtual IList<PromptModel> Prompts { get; set; } = new List<PromptModel>();
+		public virtual IList<SubscriptionModel> Subscriptions { get; set; } = new List<SubscriptionModel>();
+		public virtual IList<SubscriptionModel> Subscribers { get; set; } = new List<SubscriptionModel>();
+		public virtual IList<SubscriptionTierModel> SubscriptionTiers { get; set; } = new List<SubscriptionTierModel>();
+
+		public bool IsLockoutEnabled { get; set; } = false;
+	}
+}

OnlyPrompt.Backend/Database/Models/UserProfileModel.cs

@@ -0,0 +1,29 @@
+using Microsoft.EntityFrameworkCore;
+using OnlyPrompt.Backend.Database.Core;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace OnlyPrompt.Backend.Database.Models
+{
+	[Index(nameof(Slug), IsUnique = true)]
+	public class UserProfileModel : EntityBase, IHasSlug
+	{
+		[MaxLength(100)]
+		public required string DisplayName { get; set; }
+
+		[MaxLength(ModelConstants.MaxSlugLength)]
+		[Column(TypeName = "citext")]
+		public required string Slug { get; set; }
+
+		[MaxLength(2000)]
+		public string? Bio { get; set; }
+	
+		public required string AvatarUrl { get; set; }
+
+		[MaxLength(200)]
+		public string? Specialities { get; set; }
+
+		public virtual UserModel User { get; set; }
+		public bool IsPublic { get; set; } = false;
+	}
+}

OnlyPrompt.Backend/Database/OnlyPromptContext.cs

@@ -0,0 +1,91 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Diagnostics;
+using OnlyPrompt.Backend.Database.Core;
+using OnlyPrompt.Backend.Database.Models;
+
+namespace OnlyPrompt.Backend.Database
+{
+	public class OnlyPromptContext : DbContext
+	{
+		public DbSet<UserModel> Users { get; set; }
+		public DbSet<UserProfileModel> UserProfiles { get; set; }
+		public DbSet<CategoryModel> Categories { get; set; }
+		public DbSet<PromptModel> Prompts { get; set; }
+		public DbSet<SubscriptionTierModel> SubscriptionTiers { get; set; }
+		public DbSet<SubscriptionModel> Subscriptions { get; set; }
+		public DbSet<ReviewModel> Reviews { get; set; }
+
+		public OnlyPromptContext(DbContextOptions<OnlyPromptContext> options) : base(options)
+		{
+		}
+
+		private void HandleEntityTimestamps()
+		{
+			var entries = ChangeTracker.Entries<ITrackableEntity>();
+			var now = DateTime.UtcNow;
+			foreach (var entry in entries)
+			{
+				if (entry.State == EntityState.Added)
+				{
+					entry.Entity.CreatedAt = now;
+					entry.Entity.UpdatedAt = now;
+				}
+				else if (entry.State == EntityState.Modified)
+				{
+					entry.Entity.UpdatedAt = now;
+				}
+			}
+		}
+
+		public override Task<int> SaveChangesAsync(bool acceptAllChangesOnSuccess, CancellationToken cancellationToken = default)
+		{
+			HandleEntityTimestamps();
+			return base.SaveChangesAsync(acceptAllChangesOnSuccess, cancellationToken);
+		}
+
+		public override int SaveChanges(bool acceptAllChangesOnSuccess)
+		{
+			HandleEntityTimestamps();
+			return base.SaveChanges(acceptAllChangesOnSuccess);
+		}
+
+		protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+		{
+			base.OnConfiguring(optionsBuilder);
+			if(optionsBuilder.IsConfigured == false)
+			{
+				optionsBuilder.UseNpgsql();
+				optionsBuilder.UseLazyLoadingProxies();
+			}
+		}
+
+		protected override void OnModelCreating(ModelBuilder modelBuilder)
+		{
+			base.OnModelCreating(modelBuilder);
+			modelBuilder.Entity<UserModel>(entity =>
+			{
+				entity.HasOne(e => e.Profile)
+					.WithOne(p => p.User)
+					.HasForeignKey<UserProfileModel>(p => p.Id);
+			});
+
+			modelBuilder.Entity<SubscriptionModel>(entity =>
+			{
+				entity.HasOne(e => e.Subscriber)
+					.WithMany(s => s.Subscriptions)
+					.HasForeignKey(e => e.SubscriberId)
+					.OnDelete(DeleteBehavior.Cascade);
+				
+				entity.HasOne(e => e.SubscribedTo)
+					.WithMany(c => c.Subscribers)
+					.HasForeignKey(e => e.SubscribedToId)
+					.OnDelete(DeleteBehavior.Cascade);
+
+				entity.HasOne(e => e.SubscriptionTier)
+					.WithMany(t => t.Subscriptions)
+					.HasForeignKey(e => e.SubscriptionTierId)
+					.OnDelete(DeleteBehavior.SetNull);
+			});	
+		}
+	}
+}

OnlyPrompt.Backend/Dockerfile

@@ -0,0 +1,31 @@
+# See https://aka.ms/customizecontainer to learn how to customize your debug container and how Visual Studio uses this Dockerfile to build your images for faster debugging.
+
+# This stage is used when running from VS in fast mode (Default for Debug configuration)
+FROM mcr.microsoft.com/dotnet/aspnet:10.0 AS base
+USER $APP_UID
+WORKDIR /app
+EXPOSE 8080
+EXPOSE 8081
+
+
+# This stage is used to build the service project
+FROM mcr.microsoft.com/dotnet/sdk:10.0 AS build
+ARG BUILD_CONFIGURATION=Release
+WORKDIR /src
+COPY ["OnlyPrompt.Backend/OnlyPrompt.Backend.csproj", "OnlyPrompt.Backend/"]
+ADD ["OnlyPrompt.Frontend", "OnlyPrompt.Backend/wwwroot"]
+RUN dotnet restore "./OnlyPrompt.Backend/OnlyPrompt.Backend.csproj"
+COPY . .
+WORKDIR "/src/OnlyPrompt.Backend"
+RUN dotnet build "./OnlyPrompt.Backend.csproj" -c $BUILD_CONFIGURATION -o /app/build
+
+# This stage is used to publish the service project to be copied to the final stage
+FROM build AS publish
+ARG BUILD_CONFIGURATION=Release
+RUN dotnet publish "./OnlyPrompt.Backend.csproj" -c $BUILD_CONFIGURATION -o /app/publish /p:UseAppHost=false
+
+# This stage is used in production or when running from VS in regular mode (Default when not using the Debug configuration)
+FROM base AS final
+WORKDIR /app
+COPY --from=publish /app/publish .
+ENTRYPOINT ["dotnet", "OnlyPrompt.Backend.dll"]

OnlyPrompt.Backend/Migrations/20260411191205_Initial.Designer.cs

@@ -0,0 +1,419 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using OnlyPrompt.Backend.Database;
+
+#nullable disable
+
+namespace OnlyPrompt.Backend.Migrations
+{
+    [DbContext(typeof(OnlyPromptContext))]
+    [Migration("20260411191205_Initial")]
+    partial class Initial
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "10.0.5")
+                .HasAnnotation("Proxies:ChangeTracking", false)
+                .HasAnnotation("Proxies:CheckEquality", false)
+                .HasAnnotation("Proxies:LazyLoading", true)
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.HasPostgresExtension(modelBuilder, "citext");
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.CategoryModel", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Description")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Slug")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("citext");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Slug")
+                        .IsUnique();
+
+                    b.ToTable("Categories");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.PromptModel", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("CategoryId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Content")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("CreatorId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Slug")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("citext");
+
+                    b.Property<Guid?>("SubscriptionTierId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Title")
+                        .IsRequired()
+                        .HasMaxLength(200)
+                        .HasColumnType("character varying(200)");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CategoryId");
+
+                    b.HasIndex("CreatorId");
+
+                    b.HasIndex("Slug")
+                        .IsUnique();
+
+                    b.HasIndex("SubscriptionTierId");
+
+                    b.ToTable("Prompts");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.ReviewModel", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Comment")
+                        .HasMaxLength(200)
+                        .HasColumnType("character varying(200)");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("PromptId")
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("Rating")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("ReviewerId")
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PromptId");
+
+                    b.HasIndex("ReviewerId", "PromptId")
+                        .IsUnique();
+
+                    b.ToTable("Reviews");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.SubscriptionModel", b =>
+                {
+                    b.Property<Guid>("SubscriberId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("SubscribedToId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid?>("SubscriptionTierId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("SubscriberId", "SubscribedToId");
+
+                    b.HasIndex("SubscribedToId");
+
+                    b.HasIndex("SubscriptionTierId");
+
+                    b.ToTable("UserSubscriptions");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.SubscriptionTierModel", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Description")
+                        .HasMaxLength(1000)
+                        .HasColumnType("character varying(1000)");
+
+                    b.Property<int>("Level")
+                        .HasColumnType("integer");
+
+                    b.Property<decimal>("MonthlyPrice")
+                        .HasColumnType("numeric");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.HasIndex("Level", "UserId")
+                        .IsUnique();
+
+                    b.ToTable("SubscriptionTiers");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.UserModel", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasColumnType("citext");
+
+                    b.Property<bool>("IsLockoutEnabled")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("PasswordHash")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.PrimitiveCollection<string[]>("Roles")
+                        .IsRequired()
+                        .HasColumnType("text[]");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("UserName")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("citext");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Email")
+                        .IsUnique();
+
+                    b.HasIndex("UserName")
+                        .IsUnique();
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.UserProfileModel", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("AvatarUrl")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Bio")
+                        .HasMaxLength(2000)
+                        .HasColumnType("character varying(2000)");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("DisplayName")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.Property<bool>("IsPublic")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("Slug")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("citext");
+
+                    b.Property<string>("Specialities")
+                        .HasMaxLength(200)
+                        .HasColumnType("character varying(200)");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Slug")
+                        .IsUnique();
+
+                    b.ToTable("UserProfiles");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.PromptModel", b =>
+                {
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.CategoryModel", "Category")
+                        .WithMany("Prompts")
+                        .HasForeignKey("CategoryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.UserModel", "Creator")
+                        .WithMany("Prompts")
+                        .HasForeignKey("CreatorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.SubscriptionTierModel", "SubscriptionTier")
+                        .WithMany("Prompts")
+                        .HasForeignKey("SubscriptionTierId")
+                        .OnDelete(DeleteBehavior.SetNull);
+
+                    b.Navigation("Category");
+
+                    b.Navigation("Creator");
+
+                    b.Navigation("SubscriptionTier");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.ReviewModel", b =>
+                {
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.PromptModel", "Prompt")
+                        .WithMany("Reviews")
+                        .HasForeignKey("PromptId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.UserModel", "Reviewer")
+                        .WithMany()
+                        .HasForeignKey("ReviewerId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Prompt");
+
+                    b.Navigation("Reviewer");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.SubscriptionModel", b =>
+                {
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.UserModel", "SubscribedTo")
+                        .WithMany("Subscribers")
+                        .HasForeignKey("SubscribedToId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.UserModel", "Subscriber")
+                        .WithMany("Subscriptions")
+                        .HasForeignKey("SubscriberId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.SubscriptionTierModel", "SubscriptionTier")
+                        .WithMany("Subscriptions")
+                        .HasForeignKey("SubscriptionTierId")
+                        .OnDelete(DeleteBehavior.SetNull);
+
+                    b.Navigation("SubscribedTo");
+
+                    b.Navigation("Subscriber");
+
+                    b.Navigation("SubscriptionTier");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.SubscriptionTierModel", b =>
+                {
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.UserModel", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.UserProfileModel", b =>
+                {
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.UserModel", "User")
+                        .WithOne("Profile")
+                        .HasForeignKey("OnlyPrompt.Backend.Database.Models.UserProfileModel", "Id")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.CategoryModel", b =>
+                {
+                    b.Navigation("Prompts");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.PromptModel", b =>
+                {
+                    b.Navigation("Reviews");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.SubscriptionTierModel", b =>
+                {
+                    b.Navigation("Prompts");
+
+                    b.Navigation("Subscriptions");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.UserModel", b =>
+                {
+                    b.Navigation("Profile")
+                        .IsRequired();
+
+                    b.Navigation("Prompts");
+
+                    b.Navigation("Subscribers");
+
+                    b.Navigation("Subscriptions");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

OnlyPrompt.Backend/Migrations/20260411191205_Initial.cs

@@ -0,0 +1,300 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace OnlyPrompt.Backend.Migrations
+{
+    /// <inheritdoc />
+    public partial class Initial : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterDatabase()
+                .Annotation("Npgsql:PostgresExtension:citext", ",,");
+
+            migrationBuilder.CreateTable(
+                name: "Categories",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    Slug = table.Column<string>(type: "citext", maxLength: 100, nullable: false),
+                    Name = table.Column<string>(type: "text", nullable: false),
+                    Description = table.Column<string>(type: "text", nullable: true),
+                    CreatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    UpdatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Categories", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Users",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    UserName = table.Column<string>(type: "citext", maxLength: 100, nullable: false),
+                    Email = table.Column<string>(type: "citext", nullable: false),
+                    PasswordHash = table.Column<string>(type: "text", nullable: false),
+                    Roles = table.Column<string[]>(type: "text[]", nullable: false),
+                    IsLockoutEnabled = table.Column<bool>(type: "boolean", nullable: false),
+                    CreatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    UpdatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Users", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "SubscriptionTiers",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    Name = table.Column<string>(type: "text", nullable: false),
+                    Description = table.Column<string>(type: "character varying(1000)", maxLength: 1000, nullable: true),
+                    UserId = table.Column<Guid>(type: "uuid", nullable: false),
+                    MonthlyPrice = table.Column<decimal>(type: "numeric", nullable: false),
+                    Level = table.Column<int>(type: "integer", nullable: false),
+                    CreatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    UpdatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_SubscriptionTiers", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_SubscriptionTiers_Users_UserId",
+                        column: x => x.UserId,
+                        principalTable: "Users",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "UserProfiles",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    DisplayName = table.Column<string>(type: "character varying(100)", maxLength: 100, nullable: false),
+                    Slug = table.Column<string>(type: "citext", maxLength: 100, nullable: false),
+                    Bio = table.Column<string>(type: "character varying(2000)", maxLength: 2000, nullable: true),
+                    AvatarUrl = table.Column<string>(type: "text", nullable: false),
+                    Specialities = table.Column<string>(type: "character varying(200)", maxLength: 200, nullable: true),
+                    IsPublic = table.Column<bool>(type: "boolean", nullable: false),
+                    CreatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    UpdatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_UserProfiles", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_UserProfiles_Users_Id",
+                        column: x => x.Id,
+                        principalTable: "Users",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Prompts",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    CreatorId = table.Column<Guid>(type: "uuid", nullable: false),
+                    CategoryId = table.Column<Guid>(type: "uuid", nullable: false),
+                    Title = table.Column<string>(type: "character varying(200)", maxLength: 200, nullable: false),
+                    Content = table.Column<string>(type: "text", nullable: false),
+                    Slug = table.Column<string>(type: "citext", maxLength: 100, nullable: false),
+                    SubscriptionTierId = table.Column<Guid>(type: "uuid", nullable: true),
+                    CreatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    UpdatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Prompts", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Prompts_Categories_CategoryId",
+                        column: x => x.CategoryId,
+                        principalTable: "Categories",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_Prompts_SubscriptionTiers_SubscriptionTierId",
+                        column: x => x.SubscriptionTierId,
+                        principalTable: "SubscriptionTiers",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.SetNull);
+                    table.ForeignKey(
+                        name: "FK_Prompts_Users_CreatorId",
+                        column: x => x.CreatorId,
+                        principalTable: "Users",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "UserSubscriptions",
+                columns: table => new
+                {
+                    SubscribedToId = table.Column<Guid>(type: "uuid", nullable: false),
+                    SubscriberId = table.Column<Guid>(type: "uuid", nullable: false),
+                    SubscriptionTierId = table.Column<Guid>(type: "uuid", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_UserSubscriptions", x => new { x.SubscriberId, x.SubscribedToId });
+                    table.ForeignKey(
+                        name: "FK_UserSubscriptions_SubscriptionTiers_SubscriptionTierId",
+                        column: x => x.SubscriptionTierId,
+                        principalTable: "SubscriptionTiers",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.SetNull);
+                    table.ForeignKey(
+                        name: "FK_UserSubscriptions_Users_SubscribedToId",
+                        column: x => x.SubscribedToId,
+                        principalTable: "Users",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_UserSubscriptions_Users_SubscriberId",
+                        column: x => x.SubscriberId,
+                        principalTable: "Users",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Reviews",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    ReviewerId = table.Column<Guid>(type: "uuid", nullable: false),
+                    PromptId = table.Column<Guid>(type: "uuid", nullable: false),
+                    Rating = table.Column<int>(type: "integer", nullable: false),
+                    Comment = table.Column<string>(type: "character varying(200)", maxLength: 200, nullable: true),
+                    CreatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    UpdatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Reviews", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Reviews_Prompts_PromptId",
+                        column: x => x.PromptId,
+                        principalTable: "Prompts",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_Reviews_Users_ReviewerId",
+                        column: x => x.ReviewerId,
+                        principalTable: "Users",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Categories_Slug",
+                table: "Categories",
+                column: "Slug",
+                unique: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Prompts_CategoryId",
+                table: "Prompts",
+                column: "CategoryId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Prompts_CreatorId",
+                table: "Prompts",
+                column: "CreatorId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Prompts_Slug",
+                table: "Prompts",
+                column: "Slug",
+                unique: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Prompts_SubscriptionTierId",
+                table: "Prompts",
+                column: "SubscriptionTierId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Reviews_PromptId",
+                table: "Reviews",
+                column: "PromptId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Reviews_ReviewerId_PromptId",
+                table: "Reviews",
+                columns: new[] { "ReviewerId", "PromptId" },
+                unique: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_SubscriptionTiers_Level_UserId",
+                table: "SubscriptionTiers",
+                columns: new[] { "Level", "UserId" },
+                unique: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_SubscriptionTiers_UserId",
+                table: "SubscriptionTiers",
+                column: "UserId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_UserProfiles_Slug",
+                table: "UserProfiles",
+                column: "Slug",
+                unique: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Users_Email",
+                table: "Users",
+                column: "Email",
+                unique: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Users_UserName",
+                table: "Users",
+                column: "UserName",
+                unique: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_UserSubscriptions_SubscribedToId",
+                table: "UserSubscriptions",
+                column: "SubscribedToId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_UserSubscriptions_SubscriptionTierId",
+                table: "UserSubscriptions",
+                column: "SubscriptionTierId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Reviews");
+
+            migrationBuilder.DropTable(
+                name: "UserProfiles");
+
+            migrationBuilder.DropTable(
+                name: "UserSubscriptions");
+
+            migrationBuilder.DropTable(
+                name: "Prompts");
+
+            migrationBuilder.DropTable(
+                name: "Categories");
+
+            migrationBuilder.DropTable(
+                name: "SubscriptionTiers");
+
+            migrationBuilder.DropTable(
+                name: "Users");
+        }
+    }
+}

OnlyPrompt.Backend/Migrations/20260412002927_ReviewManyToMany.Designer.cs

@@ -0,0 +1,419 @@
+// <auto-generated />
+using System;
+using System.Collections.Generic;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using OnlyPrompt.Backend.Database;
+
+#nullable disable
+
+namespace OnlyPrompt.Backend.Migrations
+{
+    [DbContext(typeof(OnlyPromptContext))]
+    [Migration("20260412002927_ReviewManyToMany")]
+    partial class ReviewManyToMany
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "10.0.5")
+                .HasAnnotation("Proxies:ChangeTracking", false)
+                .HasAnnotation("Proxies:CheckEquality", false)
+                .HasAnnotation("Proxies:LazyLoading", true)
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.HasPostgresExtension(modelBuilder, "citext");
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.CategoryModel", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Description")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Slug")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("citext");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Slug")
+                        .IsUnique();
+
+                    b.ToTable("Categories");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.PromptModel", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("CategoryId")
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("CreatorId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Description")
+                        .IsRequired()
+                        .HasMaxLength(1000)
+                        .HasColumnType("character varying(1000)");
+
+                    b.Property<string>("Prompt")
+                        .IsRequired()
+                        .HasMaxLength(4000)
+                        .HasColumnType("character varying(4000)");
+
+                    b.Property<string>("Slug")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("citext");
+
+                    b.Property<Guid?>("SubscriptionTierId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Title")
+                        .IsRequired()
+                        .HasMaxLength(200)
+                        .HasColumnType("character varying(200)");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CategoryId");
+
+                    b.HasIndex("CreatorId");
+
+                    b.HasIndex("Slug")
+                        .IsUnique();
+
+                    b.HasIndex("SubscriptionTierId");
+
+                    b.ToTable("Prompts");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.ReviewModel", b =>
+                {
+                    b.Property<Guid>("ReviewerId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("PromptId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Comment")
+                        .HasMaxLength(200)
+                        .HasColumnType("character varying(200)");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("Rating")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("ReviewerId", "PromptId");
+
+                    b.HasIndex("PromptId");
+
+                    b.ToTable("Reviews");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.SubscriptionModel", b =>
+                {
+                    b.Property<Guid>("SubscriberId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("SubscribedToId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid?>("SubscriptionTierId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("SubscriberId", "SubscribedToId");
+
+                    b.HasIndex("SubscribedToId");
+
+                    b.HasIndex("SubscriptionTierId");
+
+                    b.ToTable("UserSubscriptions");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.SubscriptionTierModel", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Description")
+                        .HasMaxLength(1000)
+                        .HasColumnType("character varying(1000)");
+
+                    b.Property<int>("Level")
+                        .HasColumnType("integer");
+
+                    b.Property<decimal>("MonthlyPrice")
+                        .HasColumnType("numeric");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.HasIndex("Level", "UserId")
+                        .IsUnique();
+
+                    b.ToTable("SubscriptionTiers");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.UserModel", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasColumnType("citext");
+
+                    b.Property<bool>("IsLockoutEnabled")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("PasswordHash")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.PrimitiveCollection<List<string>>("Roles")
+                        .IsRequired()
+                        .HasColumnType("text[]");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("UserName")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("citext");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Email")
+                        .IsUnique();
+
+                    b.HasIndex("UserName")
+                        .IsUnique();
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.UserProfileModel", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("AvatarUrl")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Bio")
+                        .HasMaxLength(2000)
+                        .HasColumnType("character varying(2000)");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("DisplayName")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.Property<bool>("IsPublic")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("Slug")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("citext");
+
+                    b.Property<string>("Specialities")
+                        .HasMaxLength(200)
+                        .HasColumnType("character varying(200)");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Slug")
+                        .IsUnique();
+
+                    b.ToTable("UserProfiles");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.PromptModel", b =>
+                {
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.CategoryModel", "Category")
+                        .WithMany("Prompts")
+                        .HasForeignKey("CategoryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.UserModel", "Creator")
+                        .WithMany("Prompts")
+                        .HasForeignKey("CreatorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.SubscriptionTierModel", "SubscriptionTier")
+                        .WithMany("Prompts")
+                        .HasForeignKey("SubscriptionTierId")
+                        .OnDelete(DeleteBehavior.SetNull);
+
+                    b.Navigation("Category");
+
+                    b.Navigation("Creator");
+
+                    b.Navigation("SubscriptionTier");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.ReviewModel", b =>
+                {
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.PromptModel", "Prompt")
+                        .WithMany("Reviews")
+                        .HasForeignKey("PromptId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.UserModel", "Reviewer")
+                        .WithMany()
+                        .HasForeignKey("ReviewerId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Prompt");
+
+                    b.Navigation("Reviewer");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.SubscriptionModel", b =>
+                {
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.UserModel", "SubscribedTo")
+                        .WithMany("Subscribers")
+                        .HasForeignKey("SubscribedToId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.UserModel", "Subscriber")
+                        .WithMany("Subscriptions")
+                        .HasForeignKey("SubscriberId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.SubscriptionTierModel", "SubscriptionTier")
+                        .WithMany("Subscriptions")
+                        .HasForeignKey("SubscriptionTierId")
+                        .OnDelete(DeleteBehavior.SetNull);
+
+                    b.Navigation("SubscribedTo");
+
+                    b.Navigation("Subscriber");
+
+                    b.Navigation("SubscriptionTier");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.SubscriptionTierModel", b =>
+                {
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.UserModel", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.UserProfileModel", b =>
+                {
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.UserModel", "User")
+                        .WithOne("Profile")
+                        .HasForeignKey("OnlyPrompt.Backend.Database.Models.UserProfileModel", "Id")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.CategoryModel", b =>
+                {
+                    b.Navigation("Prompts");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.PromptModel", b =>
+                {
+                    b.Navigation("Reviews");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.SubscriptionTierModel", b =>
+                {
+                    b.Navigation("Prompts");
+
+                    b.Navigation("Subscriptions");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.UserModel", b =>
+                {
+                    b.Navigation("Profile")
+                        .IsRequired();
+
+                    b.Navigation("Prompts");
+
+                    b.Navigation("Subscribers");
+
+                    b.Navigation("Subscriptions");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

OnlyPrompt.Backend/Migrations/20260412002927_ReviewManyToMany.cs

@@ -0,0 +1,93 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace OnlyPrompt.Backend.Migrations
+{
+    /// <inheritdoc />
+    public partial class ReviewManyToMany : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropPrimaryKey(
+                name: "PK_Reviews",
+                table: "Reviews");
+
+            migrationBuilder.DropIndex(
+                name: "IX_Reviews_ReviewerId_PromptId",
+                table: "Reviews");
+
+            migrationBuilder.DropColumn(
+                name: "Id",
+                table: "Reviews");
+
+            migrationBuilder.DropColumn(
+                name: "Content",
+                table: "Prompts");
+
+            migrationBuilder.AddColumn<string>(
+                name: "Description",
+                table: "Prompts",
+                type: "character varying(1000)",
+                maxLength: 1000,
+                nullable: false,
+                defaultValue: "");
+
+            migrationBuilder.AddColumn<string>(
+                name: "Prompt",
+                table: "Prompts",
+                type: "character varying(4000)",
+                maxLength: 4000,
+                nullable: false,
+                defaultValue: "");
+
+            migrationBuilder.AddPrimaryKey(
+                name: "PK_Reviews",
+                table: "Reviews",
+                columns: new[] { "ReviewerId", "PromptId" });
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropPrimaryKey(
+                name: "PK_Reviews",
+                table: "Reviews");
+
+            migrationBuilder.DropColumn(
+                name: "Description",
+                table: "Prompts");
+
+            migrationBuilder.DropColumn(
+                name: "Prompt",
+                table: "Prompts");
+
+            migrationBuilder.AddColumn<Guid>(
+                name: "Id",
+                table: "Reviews",
+                type: "uuid",
+                nullable: false,
+                defaultValue: new Guid("00000000-0000-0000-0000-000000000000"));
+
+            migrationBuilder.AddColumn<string>(
+                name: "Content",
+                table: "Prompts",
+                type: "text",
+                nullable: false,
+                defaultValue: "");
+
+            migrationBuilder.AddPrimaryKey(
+                name: "PK_Reviews",
+                table: "Reviews",
+                column: "Id");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Reviews_ReviewerId_PromptId",
+                table: "Reviews",
+                columns: new[] { "ReviewerId", "PromptId" },
+                unique: true);
+        }
+    }
+}

OnlyPrompt.Backend/Migrations/OnlyPromptContextModelSnapshot.cs

@@ -0,0 +1,416 @@
+// <auto-generated />
+using System;
+using System.Collections.Generic;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using OnlyPrompt.Backend.Database;
+
+#nullable disable
+
+namespace OnlyPrompt.Backend.Migrations
+{
+    [DbContext(typeof(OnlyPromptContext))]
+    partial class OnlyPromptContextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "10.0.5")
+                .HasAnnotation("Proxies:ChangeTracking", false)
+                .HasAnnotation("Proxies:CheckEquality", false)
+                .HasAnnotation("Proxies:LazyLoading", true)
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.HasPostgresExtension(modelBuilder, "citext");
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.CategoryModel", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Description")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Slug")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("citext");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Slug")
+                        .IsUnique();
+
+                    b.ToTable("Categories");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.PromptModel", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("CategoryId")
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("CreatorId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Description")
+                        .IsRequired()
+                        .HasMaxLength(1000)
+                        .HasColumnType("character varying(1000)");
+
+                    b.Property<string>("Prompt")
+                        .IsRequired()
+                        .HasMaxLength(4000)
+                        .HasColumnType("character varying(4000)");
+
+                    b.Property<string>("Slug")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("citext");
+
+                    b.Property<Guid?>("SubscriptionTierId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Title")
+                        .IsRequired()
+                        .HasMaxLength(200)
+                        .HasColumnType("character varying(200)");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CategoryId");
+
+                    b.HasIndex("CreatorId");
+
+                    b.HasIndex("Slug")
+                        .IsUnique();
+
+                    b.HasIndex("SubscriptionTierId");
+
+                    b.ToTable("Prompts");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.ReviewModel", b =>
+                {
+                    b.Property<Guid>("ReviewerId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("PromptId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Comment")
+                        .HasMaxLength(200)
+                        .HasColumnType("character varying(200)");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("Rating")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("ReviewerId", "PromptId");
+
+                    b.HasIndex("PromptId");
+
+                    b.ToTable("Reviews");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.SubscriptionModel", b =>
+                {
+                    b.Property<Guid>("SubscriberId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("SubscribedToId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid?>("SubscriptionTierId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("SubscriberId", "SubscribedToId");
+
+                    b.HasIndex("SubscribedToId");
+
+                    b.HasIndex("SubscriptionTierId");
+
+                    b.ToTable("UserSubscriptions");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.SubscriptionTierModel", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Description")
+                        .HasMaxLength(1000)
+                        .HasColumnType("character varying(1000)");
+
+                    b.Property<int>("Level")
+                        .HasColumnType("integer");
+
+                    b.Property<decimal>("MonthlyPrice")
+                        .HasColumnType("numeric");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.HasIndex("Level", "UserId")
+                        .IsUnique();
+
+                    b.ToTable("SubscriptionTiers");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.UserModel", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasColumnType("citext");
+
+                    b.Property<bool>("IsLockoutEnabled")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("PasswordHash")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.PrimitiveCollection<List<string>>("Roles")
+                        .IsRequired()
+                        .HasColumnType("text[]");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("UserName")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("citext");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Email")
+                        .IsUnique();
+
+                    b.HasIndex("UserName")
+                        .IsUnique();
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.UserProfileModel", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("AvatarUrl")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Bio")
+                        .HasMaxLength(2000)
+                        .HasColumnType("character varying(2000)");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("DisplayName")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)");
+
+                    b.Property<bool>("IsPublic")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("Slug")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("citext");
+
+                    b.Property<string>("Specialities")
+                        .HasMaxLength(200)
+                        .HasColumnType("character varying(200)");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Slug")
+                        .IsUnique();
+
+                    b.ToTable("UserProfiles");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.PromptModel", b =>
+                {
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.CategoryModel", "Category")
+                        .WithMany("Prompts")
+                        .HasForeignKey("CategoryId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.UserModel", "Creator")
+                        .WithMany("Prompts")
+                        .HasForeignKey("CreatorId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.SubscriptionTierModel", "SubscriptionTier")
+                        .WithMany("Prompts")
+                        .HasForeignKey("SubscriptionTierId")
+                        .OnDelete(DeleteBehavior.SetNull);
+
+                    b.Navigation("Category");
+
+                    b.Navigation("Creator");
+
+                    b.Navigation("SubscriptionTier");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.ReviewModel", b =>
+                {
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.PromptModel", "Prompt")
+                        .WithMany("Reviews")
+                        .HasForeignKey("PromptId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.UserModel", "Reviewer")
+                        .WithMany()
+                        .HasForeignKey("ReviewerId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Prompt");
+
+                    b.Navigation("Reviewer");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.SubscriptionModel", b =>
+                {
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.UserModel", "SubscribedTo")
+                        .WithMany("Subscribers")
+                        .HasForeignKey("SubscribedToId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.UserModel", "Subscriber")
+                        .WithMany("Subscriptions")
+                        .HasForeignKey("SubscriberId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.SubscriptionTierModel", "SubscriptionTier")
+                        .WithMany("Subscriptions")
+                        .HasForeignKey("SubscriptionTierId")
+                        .OnDelete(DeleteBehavior.SetNull);
+
+                    b.Navigation("SubscribedTo");
+
+                    b.Navigation("Subscriber");
+
+                    b.Navigation("SubscriptionTier");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.SubscriptionTierModel", b =>
+                {
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.UserModel", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.UserProfileModel", b =>
+                {
+                    b.HasOne("OnlyPrompt.Backend.Database.Models.UserModel", "User")
+                        .WithOne("Profile")
+                        .HasForeignKey("OnlyPrompt.Backend.Database.Models.UserProfileModel", "Id")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.CategoryModel", b =>
+                {
+                    b.Navigation("Prompts");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.PromptModel", b =>
+                {
+                    b.Navigation("Reviews");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.SubscriptionTierModel", b =>
+                {
+                    b.Navigation("Prompts");
+
+                    b.Navigation("Subscriptions");
+                });
+
+            modelBuilder.Entity("OnlyPrompt.Backend.Database.Models.UserModel", b =>
+                {
+                    b.Navigation("Profile")
+                        .IsRequired();
+
+                    b.Navigation("Prompts");
+
+                    b.Navigation("Subscribers");
+
+                    b.Navigation("Subscriptions");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

OnlyPrompt.Backend/OnlyPrompt.Backend.csproj

@@ -0,0 +1,36 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <DockerDefaultTargetOS>Linux</DockerDefaultTargetOS>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="AutoMapper" Version="16.1.1" />
+    <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="10.0.5" NoWarn="NU1605" />
+    <PackageReference Include="Microsoft.AspNetCore.Authentication.OpenIdConnect" Version="10.0.5" NoWarn="NU1605" />
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="10.0.5" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="10.0.5">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Proxies" Version="10.0.5" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="10.0.5">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.Identity.Web" Version="3.14.1" />
+    <PackageReference Include="Microsoft.Identity.Web.DownstreamApi" Version="3.14.1" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="10.0.1" />
+    <PackageReference Include="Scalar.AspNetCore" Version="2.13.22" />
+    <PackageReference Include="Scalar.AspNetCore.Microsoft" Version="2.13.22" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Folder Include="Migrations\" />
+    <Folder Include="wwwroot\" />
+  </ItemGroup>
+
+</Project>

OnlyPrompt.Backend/OnlyPrompt.Backend.http

@@ -0,0 +1,6 @@
+@OnlyPrompt.Backend_HostAddress = http://localhost:5093
+
+GET {{OnlyPrompt.Backend_HostAddress}}/weatherforecast/
+Accept: application/json
+
+###

OnlyPrompt.Backend/Program.cs

@@ -0,0 +1,105 @@
+using Microsoft.AspNetCore.Authentication;
+using Microsoft.AspNetCore.Authentication.JwtBearer;
+using Microsoft.AspNetCore.Http.Features;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Rewrite;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.FileProviders;
+using Microsoft.Extensions.Options;
+using Microsoft.Identity.Web;
+using Microsoft.IdentityModel.Tokens;
+using OnlyPrompt.Backend.Database;
+using OnlyPrompt.Backend.Database.Models;
+using OnlyPrompt.Backend.Services.Jwt;
+using OnlyPrompt.Backend.Utils;
+using Scalar.AspNetCore;
+using System.Text;
+using System.Text.Json;
+
+var builder = WebApplication.CreateBuilder(args);
+var config = builder.Configuration;
+// Add services to the container.
+builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme);
+builder.Services.AddDbContext<OnlyPromptContext>(opts =>
+{
+	opts.UseNpgsql(builder.Configuration.GetConnectionString("DefaultConnection"));
+	opts.UseLazyLoadingProxies();
+});
+
+builder.Services.AddSingleton<IPasswordHasher<UserModel>, PasswordHasher<UserModel>>();
+builder.Services.AddSingleton<ITokenService, JwtTokenService>();
+builder.Services.AddAutoMapper(AutoMapperSetup.Setup);
+builder.Services.AddValidation(opts =>
+{
+	opts.MaxDepth = 10;
+});
+builder.Services.AddAuthorization();
+builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
+	.AddJwtBearer(JwtBearerDefaults.AuthenticationScheme, opts =>
+	{
+		opts.TokenValidationParameters = new TokenValidationParameters
+		{
+			ValidateIssuer = true,
+			ValidateAudience = true,
+			ValidateLifetime = true,
+			ValidateIssuerSigningKey = true,
+			ValidIssuer = config["Jwt:Issuer"],
+			ValidAudience = config["Jwt:Audience"],
+			IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(config["Jwt:Key"]))
+		};
+		opts.Events = new JwtBearerEvents
+		{
+			OnMessageReceived = context =>
+			{
+				if (context.Request.Cookies.ContainsKey("jwt"))
+					context.Token = context.Request.Cookies["jwt"];
+
+				return Task.CompletedTask;
+			}
+		};
+	});
+
+builder.Services.AddControllers().AddJsonOptions(jsonOpts =>
+{
+	jsonOpts.JsonSerializerOptions.PropertyNamingPolicy = JsonNamingPolicy.CamelCase;
+});
+builder.Services.AddOpenApi(opts => opts.AddScalarTransformers());
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+if (app.Environment.IsDevelopment())
+{
+	app.MapOpenApi();
+	app.MapScalarApiReference();
+}
+
+app.UseHttpsRedirection();
+
+var rewrite = new RewriteOptions()
+	.AddRewrite(@"^(?!scalar\/?|api\/?)([^.]+)$", "$1.html", skipRemainingRules: true);
+
+app.UseRewriter(rewrite);
+app.UseAuthorization();
+if (app.Environment.IsDevelopment())
+{
+	var dir = Path.GetFullPath("./../OnlyPrompt.Frontend");
+	app.UseStaticFiles(new StaticFileOptions
+	{
+		FileProvider = new PhysicalFileProvider(dir),
+		RedirectToAppendTrailingSlash = true,
+		HttpsCompression = HttpsCompressionMode.Compress,
+	});
+}
+else
+{
+	app.UseStaticFiles();
+}
+
+app.MapControllers();
+app.MapFallbackToFile("/login.html");
+using var scope = app.Services.CreateScope();
+var db = scope.ServiceProvider.GetRequiredService<OnlyPromptContext>();
+await db.Database.MigrateAsync();
+
+app.Run();

OnlyPrompt.Backend/Properties/launchSettings.json

@@ -0,0 +1,25 @@
+{
+  "profiles": {
+    "https": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "launchUrl": "https://localhost:7163/scalar",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      },
+      "dotnetRunMessages": true,
+      "applicationUrl": "https://localhost:7163;http://localhost:5093"
+    },
+    "Container (Dockerfile)": {
+      "commandName": "Docker",
+      "launchUrl": "{Scheme}://{ServiceHost}:{ServicePort}",
+      "environmentVariables": {
+        "ASPNETCORE_HTTPS_PORTS": "8081",
+        "ASPNETCORE_HTTP_PORTS": "8080"
+      },
+      "publishAllPorts": true,
+      "useSSL": true
+    }
+  },
+  "$schema": "https://json.schemastore.org/launchsettings.json"
+}

OnlyPrompt.Backend/Services/Jwt/ITokenService.cs

@@ -0,0 +1,15 @@
+using OnlyPrompt.Backend.Database.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Security.Claims;
+using System.Threading.Tasks;
+
+namespace OnlyPrompt.Backend.Services.Jwt
+{
+	public interface ITokenService
+	{
+		string BuildToken(UserModel user, out DateTime validUntil);
+		bool ValidateToken(string token, out ClaimsPrincipal claims);
+	}
+}

OnlyPrompt.Backend/Services/Jwt/JwtTokenService.cs

@@ -0,0 +1,72 @@
+using Microsoft.Extensions.Configuration;
+using Microsoft.IdentityModel.Tokens;
+using OnlyPrompt.Backend.Database.Models;
+using OnlyPrompt.Backend.Utils;
+using System;
+using System.Collections.Generic;
+using System.IdentityModel.Tokens.Jwt;
+using System.Linq;
+using System.Security.Claims;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+
+namespace OnlyPrompt.Backend.Services.Jwt
+{
+	public class JwtTokenService : ITokenService
+	{
+		private string _key;
+		private string _issuer;
+		private string _audience;
+		private TimeSpan _valid;
+
+		public JwtTokenService(IConfiguration config)
+		{
+			config = config.GetSection("Jwt");
+			_key = config["Key"];
+			_issuer = config["Issuer"];
+			_audience = config["Audience"];
+			_valid = config.GetValue<TimeSpan>("Valid");
+		}
+
+		public string BuildToken(UserModel user, out DateTime validUntil)
+		{
+			var claims = user.GetClaims().ToList();
+			validUntil = DateTime.UtcNow.Add(_valid);
+			claims.Add(new Claim("exp", new DateTimeOffset(validUntil).ToUnixTimeSeconds().ToString()));
+			claims.Add(new Claim("amr", "pwd"));
+			var securityKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(_key));
+			var credentials = new SigningCredentials(securityKey, SecurityAlgorithms.HmacSha256Signature);
+			var tokenDescriptor = new JwtSecurityToken(_issuer, _audience, claims, expires: validUntil, signingCredentials: credentials);
+			return new JwtSecurityTokenHandler().WriteToken(tokenDescriptor);
+		}
+
+		public bool ValidateToken(string token, out ClaimsPrincipal claims)
+		{
+			var mySecret = Encoding.UTF8.GetBytes(_key);
+			var mySecurityKey = new SymmetricSecurityKey(mySecret);
+			var tokenHandler = new JwtSecurityTokenHandler();
+			try
+			{
+				claims = tokenHandler.ValidateToken(token,
+				new TokenValidationParameters
+				{
+					ValidateIssuerSigningKey = true,
+					ValidateIssuer = true,
+					ValidateAudience = true,
+					ValidIssuer = _issuer,
+					ValidAudience = _audience,
+					IssuerSigningKey = mySecurityKey,
+				}, out SecurityToken validatedToken);
+			}
+			catch
+			{
+				claims = null;
+				return false;
+			}
+
+			return true;
+		}
+	}
+
+}

OnlyPrompt.Backend/Utils/AutoMapperSetup.cs

@@ -0,0 +1,93 @@
+using AutoMapper;
+using OnlyPrompt.Backend.ApiModels.Auth;
+using OnlyPrompt.Backend.ApiModels.Category;
+using OnlyPrompt.Backend.ApiModels.Prompt;
+using OnlyPrompt.Backend.ApiModels.Subscription;
+using OnlyPrompt.Backend.ApiModels.UserProfile;
+using OnlyPrompt.Backend.Database.Models;
+
+namespace OnlyPrompt.Backend.Utils
+{
+	public static class AutoMapperSetup
+	{
+		public static void Setup(IMapperConfigurationExpression config)
+		{
+			config.CreateMap<UserModel, ApiUser>()
+				.MapCtorParamFrom(x => x.Id, x => x.Id)
+				.MapCtorParamFrom(x => x.UserName, x => x.UserName)
+				.MapCtorParamFrom(x => x.Roles, x => x.Roles)
+				.MapCtorParamFrom(x => x.Email, x => x.Email);
+
+			config.CreateMap<UserProfileModel, ApiUserProfile>()
+				.MapCtorParamFrom(x => x.DisplayName, x => x.DisplayName)
+				.MapCtorParamFrom(x => x.Slug, x => x.Slug)
+				.MapCtorParamFrom(x => x.Bio, x => x.Bio)
+				.MapCtorParamFrom(x => x.AvatarUrl, x => x.AvatarUrl)
+				.MapCtorParamFrom(x => x.Specialities, x => x.Specialities)
+				.MapCtorParamFrom(x => x.AverageRating, x => x.User.Prompts.Average(p => p.Reviews.Average(r => r.Rating)))
+				.MapCtorParamFrom(x => x.Subscribers, x => x.User.Subscribers.Count());
+
+			config.CreateMap<PromptModel, ApiPrompt>()
+				.MapCtorParamFrom(x => x.Id, x => x.Id)
+				.MapCtorParamFrom(x => x.Title, x => x.Title)
+				.MapCtorParamFrom(x => x.Description, x => x.Description)
+				.MapCtorParamFrom(x => x.Content, x => x.Prompt)
+				.MapCtorParamFrom(x => x.TimeStamp, x => x.UpdatedAt)
+				.MapCtorParamFrom(x => x.TierLevel, x => x.SubscriptionTier == null ? (int?)null : x.SubscriptionTier.Level)
+				.MapCtorParamFrom(x => x.TierName, x => x.SubscriptionTier == null ? null : x.SubscriptionTier.Name)
+				.MapCtorParamFrom(x => x.CreatorName, x => x.Creator.Profile.DisplayName)
+				.MapCtorParamFrom(x => x.CreatorId, x => x.CreatorId)
+				.MapCtorParamFrom(x => x.AverageRating, x => x.Reviews.Average(r => (double?)r.Rating));
+
+			config.CreateMap<PromptModel, ApiMinimalPrompt>()
+				.MapCtorParamFrom(x => x.Id, x => x.Id)
+				.MapCtorParamFrom(x => x.Title, x => x.Title)
+				.MapCtorParamFrom(x => x.CreatorName, x => x.Creator.Profile.DisplayName)
+				.MapCtorParamFrom(x => x.TimeStamp, x => x.UpdatedAt)
+				.MapCtorParamFrom(x => x.CreatorId, x => x.CreatorId)
+				.MapCtorParamFrom(x => x.TierLevel, x => x.SubscriptionTier == null ? (int?)null : x.SubscriptionTier.Level)
+				.MapCtorParamFrom(x => x.TierName, x => x.SubscriptionTier == null ? null : x.SubscriptionTier.Name)
+				.MapCtorParamFrom(x => x.AverageRating, x => x.Reviews.Average(r => (double?)r.Rating))
+				.MapCtorParamFrom(x => x.CanAccess, x => true);
+
+			config.CreateMap<ReviewModel, ApiReview>()
+				.MapCtorParamFrom(x => x.CreatorId, x => x.ReviewerId)
+				.MapCtorParamFrom(x => x.CreatorName, x => x.Reviewer.Profile.DisplayName)
+				.MapCtorParamFrom(x => x.Comment, x => x.Comment)
+				.MapCtorParamFrom(x => x.Rating, x => x.Rating);
+
+			config.CreateMap<CategoryModel, ApiCategory>()
+				.MapCtorParamFrom(x => x.Id, x => x.Id)
+				.MapCtorParamFrom(x => x.Name, x => x.Name)
+				.MapCtorParamFrom(x => x.Description, x => x.Description)
+				.MapCtorParamFrom(x => x.Slug, x => x.Slug);
+
+			config.CreateMap<CategoryModel, ApiMinimalCategory>()
+				.MapCtorParamFrom(x => x.Name, x => x.Name)
+				.MapCtorParamFrom(x => x.Slug, x => x.Slug);
+
+			config.CreateMap<ApiCreateCategoryRequest, CategoryModel>()
+				.MapMemberFrom(x => x.Description, x => x.Description)
+				.MapMemberFrom(x => x.Name, x => x.Name)
+				.MapMemberFrom(x => x.Slug, x => x.Slug);
+
+			config.CreateMap<SubscriptionTierModel, ApiSubscriptionTier>()
+				.MapCtorParamFrom(x => x.Id, x => x.Id)
+				.MapCtorParamFrom(x => x.Name, x => x.Name)
+				.MapCtorParamFrom(x => x.Level, x => x.Level)
+				.MapCtorParamFrom(x => x.MonthlyPrice, x => x.MonthlyPrice)
+				.MapCtorParamFrom(x => x.Description, x => x.Description);
+
+			config.CreateMap<ApiCreateSubscriptionTierRequest, SubscriptionTierModel>()
+				.MapMemberFrom(x => x.Name, x => x.Name)
+				.MapMemberFrom(x => x.Level, x => x.Level)
+				.MapMemberFrom(x => x.MonthlyPrice, x => x.MonthlyPrice)
+				.MapMemberFrom(x => x.Description, x => x.Description);
+
+			config.CreateMap<SubscriptionModel, ApiSubscription>()
+				.MapCtorParamFrom(x => x.SubscribedToId, x => x.SubscribedToId)
+				.MapCtorParamFrom(x => x.SubscribedToName, x => x.SubscribedTo.Profile.DisplayName)
+				.MapCtorParamFrom(x => x.CurrentTier, x => x.SubscriptionTier);
+		}
+	}
+}

OnlyPrompt.Backend/Utils/AutomapperExtensions.cs

@@ -0,0 +1,48 @@
+using AutoMapper;
+using AutoMapper.Configuration;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Linq.Expressions;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OnlyPrompt.Backend.Utils
+{
+	public static class AutomapperExtensions
+	{
+
+		public static IMappingExpression<TSource, TDestination> CreateUpdateMap<TSource, TDestination>(this IMapperConfigurationExpression cfg, MemberList memberList = MemberList.Source)
+		{
+			return cfg.CreateMap<TSource, TDestination>(memberList)
+				.IgnoreNullMembers();
+		}
+
+		public static IMappingExpression<TSource, TDestination> MapMemberFrom<TSource, TDestination, TMember, TSourceMember>(this IMappingExpression<TSource, TDestination> mapping, Expression<Func<TDestination, TMember>> destinationMember, Expression<Func<TSource, TSourceMember>> sourceMember)
+		{
+			mapping.ForMember(destinationMember, x => x.MapFrom(sourceMember));
+			return mapping;
+		}
+
+		public static IMappingExpression<TSource, TDestination> IgnoreNullMembers<TSource, TDestination>(this IMappingExpression<TSource, TDestination> mapping)
+		{
+			mapping.ForAllMembers(opts => opts.Condition((src, dest, member) => src != null));
+			return mapping;
+		}
+
+		public static IMappingExpression<TSource, TDestination> MapCtorParamFrom<TSource, TDestination, TMember, TSourceMember>(this IMappingExpression<TSource, TDestination> mapping, Expression<Func<TDestination, TMember>> destinationMember, Expression<Func<TSource, TSourceMember>> sourceMember)
+		{
+			mapping.ForCtorParam(destinationMember, x => x.MapFrom(sourceMember));
+			return mapping;
+		}
+
+		public static IMappingExpression<TSource, TDestination> ForCtorParam<TSource, TDestination, DValue>(this IMappingExpression<TSource, TDestination> mapping, Expression<Func<TDestination, DValue>> paramSelector, Action<ICtorParamConfigurationExpression<TSource>> configure)
+		{
+			var ctorParamName = ((MemberExpression)paramSelector.Body).Member.Name;
+			mapping.ForCtorParam(ctorParamName, configure);
+			return mapping;
+		}
+
+
+	}
+}

OnlyPrompt.Backend/Utils/EntityExtensions.cs

@@ -0,0 +1,28 @@
+using Microsoft.EntityFrameworkCore;
+using OnlyPrompt.Backend.Database.Core;
+
+namespace OnlyPrompt.Backend.Utils
+{
+	public static class EntityExtensions
+	{
+		public static Task<T?> FindBySlugAsync<T>(this IQueryable<T> queryable, string slug) where T : class, IHasSlug
+		{
+			return queryable.FirstOrDefaultAsync(e => e.Slug == slug);
+		}
+
+		public static Task<T?> FindByIdentifierAsync<T>(this IQueryable<T> queryable, Identifier identifier) where T : class, IHasSlug, IEntity
+		{
+			if (identifier.Id.HasValue)
+				return queryable.FirstOrDefaultAsync(e => e.Id == identifier.Id.Value);
+
+			return queryable.FindBySlugAsync(identifier.Slug);
+		}
+
+		public static IQueryable<T> OfIdentifer<T>(this IQueryable<T> queryable, Identifier identifier) where T : class, IHasSlug, IEntity
+		{
+			if (identifier.Id.HasValue)
+				return queryable.Where(e => e.Id == identifier.Id.Value);
+			return queryable.Where(e => e.Slug == identifier.Slug);
+		}
+	}
+}

OnlyPrompt.Backend/Utils/Extensions.cs

@@ -0,0 +1,80 @@
+using Microsoft.AspNetCore.Authentication.JwtBearer;
+using OnlyPrompt.Backend.Database.Models;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq.Expressions;
+using System.Runtime.CompilerServices;
+using System.Security.Claims;
+
+namespace OnlyPrompt.Backend.Utils
+{
+	public static class Extensions
+	{
+		public static string? GetIdentifier(this ClaimsPrincipal principal) => principal.FindFirstValue(ClaimTypes.NameIdentifier);
+		public static bool TryGetIdentifier(this ClaimsPrincipal principal, [NotNullWhen(true)]out string? identifier)
+		{
+			identifier = principal.FindFirstValue(ClaimTypes.NameIdentifier);
+			return identifier != null;
+		}
+
+		public static Guid? GetUserId(this ClaimsPrincipal principal)
+		{
+			if (principal.TryGetIdentifier(out var identifier) && Guid.TryParse(identifier, out var userId))
+				return userId;
+
+			return null;
+		}
+
+		public static IEnumerable<Claim> GetClaims(this UserModel user)
+		{
+			yield return new Claim(ClaimTypes.NameIdentifier, user.Id.ToString());
+			yield return new Claim(ClaimTypes.Name, user.UserName);
+			yield return new Claim(ClaimTypes.Email, user.Email);	
+			
+			foreach (var role in user.Roles)
+				yield return new Claim(ClaimTypes.Role, role);
+		}
+
+		public static IQueryable<T> OrderBy<T, TKey>(this IQueryable<T> source, Expression<Func<T, TKey>> selecter, bool ascending)
+		{
+			if(ascending)
+				return source.OrderBy(selecter);
+			else
+				return source.OrderByDescending(selecter);
+		}
+
+		public static CookieOptions Copy(this CookieOptions options, Action<CookieOptions>? modify = null)
+		{
+			var newOptions = new CookieOptions
+			{
+				Domain = options.Domain,
+				Expires = options.Expires,
+				HttpOnly = options.HttpOnly,
+				IsEssential = options.IsEssential,
+				MaxAge = options.MaxAge,
+				Path = options.Path,
+				SameSite = options.SameSite,
+				Secure = options.Secure
+			};
+
+			modify?.Invoke(newOptions);
+			return newOptions;
+		}
+
+		public static string Limit(this string @string, int maxLength)
+		{
+			if (@string.Length <= maxLength)
+				return @string;
+			return @string.Substring(0, maxLength);
+		}
+
+		public const string LowerAlphabet = "abcdefghijklmnopqrstuvwxyz";
+		public static string GetString(this Random @random, int lenght, string alphabet = LowerAlphabet)
+		{
+			Span<char> chars = stackalloc char[lenght];
+			for (int i = 0; i < lenght; i++)
+				chars[i] = alphabet[@random.Next(alphabet.Length)];
+
+			return new string(chars);
+		}
+	}
+}

OnlyPrompt.Backend/Utils/Identifier.cs

@@ -0,0 +1,34 @@
+using Scalar.AspNetCore;
+
+namespace OnlyPrompt.Backend.Utils
+{
+	public struct Identifier
+	{
+		public string Slug { get; init; }
+		public Guid? Id { get; init; }
+
+		public Identifier(string slug)
+		{
+			this.Slug = slug;
+			this.Id = null;
+		}
+
+		public Identifier(Guid guid)
+		{
+			this.Id = guid;
+			this.Slug = string.Empty;
+		}
+
+		public static implicit operator Identifier(string slug) => new Identifier(slug);
+		public static implicit operator Identifier(Guid guid) => new Identifier(guid);
+
+		public static bool TryParse(string input, out Identifier identifier)
+		{
+			identifier= new Identifier(input);
+			if (Guid.TryParse(input, out var guid))
+				identifier = new Identifier(guid);
+
+			return true;
+		}
+	}
+}

OnlyPrompt.Backend/Utils/SlugHelper.cs

@@ -0,0 +1,42 @@
+using System.Text.RegularExpressions;
+
+namespace OnlyPrompt.Backend.Utils
+{
+	public static class SlugHelper
+	{
+		private static readonly Regex InvalidCharacters = new(@"[^a-z0-9\-]", RegexOptions.Compiled);
+		private static readonly Regex MultipleDashes = new(@"-+", RegexOptions.Compiled);
+
+		public static string GenerateSlug(string input, int? maxLength = null)
+		{
+			if (string.IsNullOrWhiteSpace(input))
+				return string.Empty;
+
+			var slug = input.ToLowerInvariant().Replace(" ", "-").Replace("_", "-");
+			slug = InvalidCharacters.Replace(slug, string.Empty);
+			slug = MultipleDashes.Replace(slug, "-");
+			slug = slug.Trim('-');
+			if (maxLength.HasValue)
+				slug = slug.Limit(maxLength.Value);
+
+			return slug;
+		}
+
+		private const string SuffixChars = "abcdefghijklmnopqrstuvwxyz0123456789";
+		public static async Task<string> GenerateUniqueSlugAsync(string input, Func<string, Task<bool>> existsFunc, int? maxLenght)
+		{
+			var slug = GenerateSlug(input);
+			var exists = await existsFunc(slug);
+			if (exists)
+			{
+				var suffix = Random.Shared.GetString(8, SuffixChars);
+				if (maxLenght.HasValue)
+					slug = slug.Limit(maxLenght.Value - 9);
+
+				slug = $"{slug}-{suffix}";
+			}
+
+			return slug;
+		}
+	}
+}

OnlyPrompt.Backend/appsettings.Development.json

@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

OnlyPrompt.Backend/appsettings.json

@@ -0,0 +1,18 @@
+{
+  "ConnectionStrings": {
+    "DefaultConnection": "Include Error Detail=true;User ID=onlyprompt;Password=onlyprompt;Host=localhost;Port=1803;Database=onlyprompt;Pooling=true;MinPoolSize=0;MaxPoolSize=100;Connection Lifetime=0;"
+  },
+  "Jwt": {
+    "Issuer": "https://onlyprompts.com",
+    "Audience": "https://onlyprompts.com",
+    "Key": "TfZi@!CC!b5UoD81gs&%tvY4J0M$p3cI",
+    "Valid": "3.0:0:0"
+  },
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}

OnlyPrompt.Frontend/.vscode/launch.json

@@ -0,0 +1,16 @@
+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+
+    {
+      "type": "msedge",
+      "request": "launch",
+      "name": "Open current page in Edge", 
+      "cwd": "${workspaceRoot}",
+      "url": "https://localhost:7163/${fileBasename}"
+    }
+  ]
+}

OnlyPrompt.Frontend/.vscode/settings.json

@@ -0,0 +1,4 @@
+{
+  "editor.tabSize": 2,
+  "editor.indentSize": 2
+}

OnlyPrompt.Frontend/chats.html

@@ -0,0 +1,129 @@
+<!-- OnlyPrompt - Chats page: 
+        - Direct messaging interface with conversation list and active chat window -->
+
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>OnlyPrompt - Chats</title>
+  <link rel="stylesheet" href="../css/variables.css">
+  <link rel="stylesheet" href="../css/base.css">
+  <link rel="stylesheet" href="../css/sidebar.css">
+  <link rel="stylesheet" href="../css/login.css">
+  <link rel="stylesheet" href="../css/topbar.css">
+  <link rel="stylesheet" href="../css/chats.css">
+  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.min.css">
+</head>
+<body>
+  <div class="layout" style="display: flex; min-height: 100vh; background: var(--bg);">
+    
+    <div id="sidebar-container"></div>
+
+    <div style="flex:1; display: flex; flex-direction: column;">
+      
+      <div id="topbar-container"></div>
+
+      <main class="chats-main">
+        <!-- Chat Container: Left column (list) + Right column (active chat) -->
+        <div class="chat-container">
+          
+          <!-- Left Column: Chat Overview -->
+          <div class="chat-list">
+            <div class="chat-list-header">
+              <h2>Messages</h2>
+              <button class="new-chat-btn"><i class="bi bi-pencil-square"></i></button>
+            </div>
+            <div class="chat-list-items">
+              <!-- Chat Entry 1 (active) -->
+              <div class="chat-item active">
+                <img src="../images/content/creator2.png" alt="Alex Chen" class="chat-avatar">
+                <div class="chat-item-info">
+                  <div class="chat-name">Alex Chen</div>
+                  <div class="chat-last-msg">Hey Sarah! Really loved your last video on minimalism...</div>
+                </div>
+                <div class="chat-time">10:17 AM</div>
+              </div>
+              <!-- Chat Entry 2 -->
+              <div class="chat-item">
+                <img src="../images/content/creator3.png" alt="Mia Wong" class="chat-avatar">
+                <div class="chat-item-info">
+                  <div class="chat-name">Mia Wong</div>
+                  <div class="chat-last-msg">Thanks for the prompt tips! They worked perfectly.</div>
+                </div>
+                <div class="chat-time">Yesterday</div>
+              </div>
+              <!-- Chat Entry 3 -->
+              <div class="chat-item">
+                <img src="../images/content/creator4.png" alt="Tom Rivera" class="chat-avatar">
+                <div class="chat-item-info">
+                  <div class="chat-name">Tom Rivera</div>
+                  <div class="chat-last-msg">Let's schedule a call for the collab?</div>
+                </div>
+                <div class="chat-time">Yesterday</div>
+              </div>
+            </div>
+          </div>
+
+          <!-- Right Column: Active Chat (with Alex Chen) -->
+          <div class="chat-active">
+            <div class="chat-header">
+              <img src="../images/content/creator2.png" alt="Alex Chen" class="chat-avatar-large">
+              <div class="chat-header-info">
+                <div class="chat-header-name">Alex Chen</div>
+                <div class="chat-header-status"><span class="online-dot"></span> Online</div>
+              </div>
+            </div>
+            <div class="chat-messages">
+              <!-- Message from Alex -->
+              <div class="message received">
+                <div class="message-bubble">Hey Sarah! Really loved your last video on minimalism. Quick question about your workspace layout?</div>
+                <div class="message-time">10:15 AM</div>
+              </div>
+              <!-- Reply from Sarah -->
+              <div class="message sent">
+                <div class="message-bubble">Thanks Alex! Appreciate it. Yes, happy to share! The desk is from Article, and the shelving unit is custom-built. Highly recommend a clean setup!</div>
+                <div class="message-time">10:16 AM</div>
+              </div>
+              <!-- Alex replies -->
+              <div class="message received">
+                <div class="message-bubble">Thanks so much! Your aesthetic is exactly what I'm aiming for. Can't wait for your next piece!</div>
+                <div class="message-time">10:17 AM</div>
+              </div>
+              <!-- Sarah replies -->
+              <div class="message sent">
+                <div class="message-bubble">Awesome! Let me know if you need more tips. Enjoy the process! 😊</div>
+                <div class="message-time">10:18 AM</div>
+              </div>
+            </div>
+            <div class="chat-input-area">
+              <input type="text" placeholder="Type your message...">
+              <button class="send-btn">Send</button>
+            </div>
+          </div>
+
+        </div>
+      </main>
+    </div>
+  </div>
+
+  <script>
+    fetch('../html/sidebar.html')
+      .then(r => r.text())
+      .then(data => {
+        document.getElementById('sidebar-container').innerHTML = data;
+        // Remove 'active' from all sidebar links
+        document.querySelectorAll('#sidebar-container .sidebar a').forEach(link => {
+          link.classList.remove('active');
+        });
+        // Set 'active' on the Chats link (4th link, index 3)
+        const chatsLink = document.querySelectorAll('#sidebar-container .sidebar li a')[3];
+        if (chatsLink) chatsLink.classList.add('active');
+      });
+
+    fetch('../html/topbar.html')
+      .then(r => r.text())
+      .then(data => document.getElementById('topbar-container').innerHTML = data);
+  </script>
+</body>
+</html>

OnlyPrompt.Frontend/community.html

@@ -0,0 +1,161 @@
+<!-- OnlyPrompt - Marketplace page: 
+      - Browse and filter AI prompts with buy/view details buttons and pricing -->
+
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>OnlyPrompt - Discover Creators</title>
+  <link rel="stylesheet" href="../css/variables.css">
+  <link rel="stylesheet" href="../css/base.css">
+  <link rel="stylesheet" href="../css/sidebar.css">
+  <link rel="stylesheet" href="../css/login.css">
+  <link rel="stylesheet" href="../css/topbar.css">
+  <link rel="stylesheet" href="../css/community.css">
+  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.min.css">
+</head>
+<body>
+  <div class="layout" style="display: flex; min-height: 100vh; background: var(--bg);">
+    
+    <div id="sidebar-container"></div>
+
+    <div style="flex:1; margin:40px auto; max-width:950px;">
+      
+      <div id="topbar-container"></div>
+
+      <main class="creators-main">
+        
+        <!-- Header / Titel -->
+        <div class="creators-header">
+          <h1>Discover Creators</h1>
+          <p>Follow your favorite prompt artists and get inspired.</p>
+        </div>
+
+        <!-- Filter Buttons -->
+        <div class="filter-buttons">
+          <button class="filter-btn active">Popular</button>
+          <button class="filter-btn">Rising</button>
+          <button class="filter-btn">New</button>
+          <button class="filter-btn">Top Rated</button>
+        </div>
+
+        <!-- Creators Grid -->
+        <div class="creators-grid">
+          
+          <!-- Creator Card 1 -->
+          <div class="creator-card">
+            <img src="../images/content/creator1.png" alt="Sarah Jenkins" class="creator-avatar">
+            <div class="creator-info">
+              <h3 class="creator-name">Sarah Jenkins</h3>
+              <div class="creator-handle">@sarahj</div>
+              <p class="creator-bio">AI Explorer | Prompt Curator | Exploring creativity through generative AI.</p>
+              <div class="creator-stats">
+                <span><i class="bi bi-puzzle"></i> 42 prompts</span>
+                <span><i class="bi bi-star-fill"></i> 4.9</span>
+              </div>
+              <button class="follow-btn">Follow</button>
+            </div>
+          </div>
+
+          <!-- Creator Card 2 -->
+          <div class="creator-card">
+            <img src="../images/content/creator2.png" alt="Alex Chen" class="creator-avatar">
+            <div class="creator-info">
+              <h3 class="creator-name">Alex Chen</h3>
+              <div class="creator-handle">@alexchen</div>
+              <p class="creator-bio">Digital artist & prompt engineer. Creating surreal landscapes.</p>
+              <div class="creator-stats">
+                <span><i class="bi bi-puzzle"></i> 87 prompts</span>
+                <span><i class="bi bi-star-fill"></i> 4.8</span>
+              </div>
+              <button class="follow-btn">Follow</button>
+            </div>
+          </div>
+
+          <!-- Creator Card 3 -->
+          <div class="creator-card">
+            <img src="../images/content/creator3.png" alt="Mia Wong" class="creator-avatar">
+            <div class="creator-info">
+              <h3 class="creator-name">Mia Wong</h3>
+              <div class="creator-handle">@miawong</div>
+              <p class="creator-bio">Midjourney master | UI/UX prompts | Design systems.</p>
+              <div class="creator-stats">
+                <span><i class="bi bi-puzzle"></i> 124 prompts</span>
+                <span><i class="bi bi-star-fill"></i> 5.0</span>
+              </div>
+              <button class="follow-btn">Follow</button>
+            </div>
+          </div>
+
+          <!-- Creator Card 4 -->
+          <div class="creator-card">
+            <img src="../images/content/creator4.png" alt="Tom Rivera" class="creator-avatar">
+            <div class="creator-info">
+              <h3 class="creator-name">Tom Rivera</h3>
+              <div class="creator-handle">@tomrivera</div>
+              <p class="creator-bio">3D artist | Character design | Sci-fi & fantasy prompts.</p>
+              <div class="creator-stats">
+                <span><i class="bi bi-puzzle"></i> 33 prompts</span>
+                <span><i class="bi bi-star-fill"></i> 4.7</span>
+              </div>
+              <button class="follow-btn">Follow</button>
+            </div>
+          </div>
+
+          <!-- Creator Card 5 -->
+          <div class="creator-card">
+            <img src="../images/content/creator5.png" alt="Emma Watson" class="creator-avatar">
+            <div class="creator-info">
+              <h3 class="creator-name">Emma Watson</h3>
+              <div class="creator-handle">@emmawatson</div>
+              <p class="creator-bio">Watercolor & pet portraits | Whimsical art prompts.</p>
+              <div class="creator-stats">
+                <span><i class="bi bi-puzzle"></i> 56 prompts</span>
+                <span><i class="bi bi-star-fill"></i> 4.9</span>
+              </div>
+              <button class="follow-btn">Follow</button>
+            </div>
+          </div>
+
+          <!-- Creator Card 6 -->
+          <div class="creator-card">
+            <img src="../images/content/creator6.png" alt="Liam O'Brien" class="creator-avatar">
+            <div class="creator-info">
+              <h3 class="creator-name">Liam O'Brien</h3>
+              <div class="creator-handle">@liamob</div>
+              <p class="creator-bio">Minimalist logo designer | Brand identity prompts.</p>
+              <div class="creator-stats">
+                <span><i class="bi bi-puzzle"></i> 28 prompts</span>
+                <span><i class="bi bi-star-fill"></i> 4.6</span>
+              </div>
+              <button class="follow-btn">Follow</button>
+            </div>
+          </div>
+
+        </div>
+
+      </main>
+    </div>
+  </div>
+
+  <script>
+    fetch('../html/sidebar.html')
+      .then(r => r.text())
+      .then(data => {
+        document.getElementById('sidebar-container').innerHTML = data;
+        // Remove 'active' from all sidebar links
+        document.querySelectorAll('#sidebar-container .sidebar a').forEach(link => {
+          link.classList.remove('active');
+        });
+        // Set 'active' on the third link (Community)
+        const thirdLink = document.querySelectorAll('#sidebar-container .sidebar li a')[2];
+        if (thirdLink) thirdLink.classList.add('active');
+      });
+
+    fetch('../html/topbar.html')
+      .then(r => r.text())
+      .then(data => document.getElementById('topbar-container').innerHTML = data);
+  </script>
+</body>
+</html>

OnlyPrompt.Frontend/create.html

@@ -0,0 +1,181 @@
+<!-- OnlyPrompt - Create Prompt page: 
+        - Form to publish new AI prompts with title, description, category, content, example output, image upload, and pricing toggle -->
+
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>OnlyPrompt - Create New Prompt</title>
+  <link rel="stylesheet" href="../css/variables.css">
+  <link rel="stylesheet" href="../css/base.css">
+  <link rel="stylesheet" href="../css/sidebar.css">
+  <link rel="stylesheet" href="../css/login.css">
+  <link rel="stylesheet" href="../css/topbar.css">
+  <link rel="stylesheet" href="../css/create.css">
+  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.min.css">
+</head>
+<body>
+  <div class="layout" style="display: flex; min-height: 100vh; background: var(--bg);">
+    
+    <div id="sidebar-container"></div>
+
+    <div style="flex:1; display: flex; flex-direction: column;">
+      
+      <div id="topbar-container"></div>
+
+      <main class="create-main">
+        <div class="create-container">
+          <div class="create-header">
+            <h1>Create AI Prompt</h1>
+            <p>Design and save custom prompts for your AI workflows.</p>
+          </div>
+
+          <form id="createPromptForm" class="create-form" enctype="multipart/form-data">
+            <!-- Title -->
+            <div class="form-group">
+              <label for="title">Prompt Title *</label>
+              <input type="text" id="title" name="title" placeholder="e.g., Write an inspiring startup story about innovation" required>
+            </div>
+
+            <!-- Description -->
+            <div class="form-group">
+              <label for="description">Description *</label>
+              <textarea id="description" name="description" rows="2" placeholder="Draft a narrative about a small team overcoming challenges to launch a groundbreaking app" required></textarea>
+            </div>
+
+            <!-- Category -->
+            <div class="form-group">
+              <label for="category">Category *</label>
+              <select id="category" name="category" required>
+                <option value="creative-writing">Creative Writing</option>
+                <option value="coding">Coding</option>
+                <option value="art">Art</option>
+                <option value="marketing">Marketing</option>
+                <option value="video">Video</option>
+                <option value="data">Data</option>
+              </select>
+            </div>
+
+            <!-- Prompt Content -->
+            <div class="form-group">
+              <label for="promptContent">Prompt Content *</label>
+              <textarea id="promptContent" name="promptContent" rows="6" placeholder="Write your prompt instructions here..." required></textarea>
+              <small class="form-hint">Use clear, step-by-step instructions for the AI.</small>
+            </div>
+
+            <!-- Example Output (Text) -->
+            <div class="form-group">
+              <label for="exampleOutput">Example Output (optional)</label>
+              <textarea id="exampleOutput" name="exampleOutput" rows="4" placeholder="Show an example of what the AI might generate..."></textarea>
+            </div>
+
+            <!-- Example Image (optional) -->
+            <div class="form-group">
+              <label for="exampleImage">Example Image (optional)</label>
+              <input type="file" id="exampleImage" name="exampleImage" accept="image/png, image/jpeg, image/jpg">
+              <small class="form-hint">Upload a PNG or JPG – preview will appear below.</small>
+              <div id="imagePreview" style="margin-top: 10px; display: none;">
+                <img id="previewImg" src="#" alt="Preview" style="max-width: 100%; max-height: 200px; border-radius: 12px;">
+              </div>
+            </div>
+
+            <!-- Pricing (with toggle) -->
+            <div class="form-group pricing-group">
+              <label>Pricing</label>
+              <div class="pricing-toggle">
+                <button type="button" id="freeBtn" class="price-option active">Free</button>
+                <button type="button" id="paidBtn" class="price-option">Paid</button>
+              </div>
+              <div id="priceField" style="display: none;">
+                <input type="number" id="price" name="price" step="0.01" min="0" placeholder="Price in USD (e.g., 19.99)">
+              </div>
+              <small class="form-hint">You can set a price later or keep it free.</small>
+            </div>
+
+            <!-- Submit Button -->
+            <div class="form-actions">
+              <button type="submit" class="submit-btn">Publish Prompt</button>
+              <button type="button" class="cancel-btn">Cancel</button>
+            </div>
+          </form>
+        </div>
+      </main>
+    </div>
+  </div>
+
+  <script>
+    // Toggle between free and paid
+    const freeBtn = document.getElementById('freeBtn');
+    const paidBtn = document.getElementById('paidBtn');
+    const priceField = document.getElementById('priceField');
+    const priceInput = document.getElementById('price');
+
+    freeBtn.addEventListener('click', () => {
+      freeBtn.classList.add('active');
+      paidBtn.classList.remove('active');
+      priceField.style.display = 'none';
+      priceInput.removeAttribute('required');
+    });
+    paidBtn.addEventListener('click', () => {
+      paidBtn.classList.add('active');
+      freeBtn.classList.remove('active');
+      priceField.style.display = 'block';
+      priceInput.setAttribute('required', 'required');
+    });
+
+    // Image preview for example image
+    const imageInput = document.getElementById('exampleImage');
+    const imagePreview = document.getElementById('imagePreview');
+    const previewImg = document.getElementById('previewImg');
+
+    if (imageInput) {
+      imageInput.addEventListener('change', function(event) {
+        const file = event.target.files[0];
+        if (file && (file.type === 'image/png' || file.type === 'image/jpeg' || file.type === 'image/jpg')) {
+          const reader = new FileReader();
+          reader.onload = function(e) {
+            previewImg.src = e.target.result;
+            imagePreview.style.display = 'block';
+          };
+          reader.readAsDataURL(file);
+        } else {
+          imagePreview.style.display = 'none';
+          previewImg.src = '#';
+          if (file) alert('Please upload a PNG or JPG image.');
+        }
+      });
+    }
+
+    // Handle form submission (demo only)
+    document.getElementById('createPromptForm').addEventListener('submit', (e) => {
+      e.preventDefault();
+      alert('Prompt published! (Demo)');
+      // Here you would normally send data to a backend (including the image file)
+    });
+
+    // Cancel button (go back)
+    document.querySelector('.cancel-btn').addEventListener('click', () => {
+      window.history.back();
+    });
+
+    // Fetch sidebar and topbar
+    fetch('../html/sidebar.html')
+      .then(r => r.text())
+      .then(data => {
+        document.getElementById('sidebar-container').innerHTML = data;
+        // Remove active class from all sidebar links
+        document.querySelectorAll('#sidebar-container .sidebar a').forEach(link => {
+          link.classList.remove('active');
+        });
+        // Optionally set active on "Create New" if it exists, otherwise keep none
+        const createLink = document.querySelector('#sidebar-container a[href="create.html"]');
+        if (createLink) createLink.classList.add('active');
+      });
+
+    fetch('../html/topbar.html')
+      .then(r => r.text())
+      .then(data => document.getElementById('topbar-container').innerHTML = data);
+  </script>
+</body>
+</html>

OnlyPrompt.Frontend/css/base.css

@@ -0,0 +1,41 @@
+/*
+  This file contains global base styles and resets
+  --> ensures consistent spacing, font usage, and box sizing
+  across all elements in the application
+*/
+
+/* Reset default browser styles */
+* {
+  margin: 0;
+  padding: 0;
+  box-sizing: border-box;
+  font-family: system-ui, sans-serif;
+}
+
+/* Global body styling */
+body {
+  background: var(--bg);
+  color: var(--text);
+}
+
+/* Form errors */
+.form-error {
+  color: red;
+  font-size: 0.875rem;
+  margin-top: 0.25rem;
+}
+
+.form-error ul {
+  list-style: none;
+  padding-left: 0;
+  list-style: '*'; 
+}
+
+.form-error li {
+  margin-bottom: 0.25rem;
+}
+
+.form-error li .error {
+  color: red;
+  font-style: italic;
+}

OnlyPrompt.Frontend/css/chats.css

@@ -0,0 +1,247 @@
+/* Chats page - Two column layout: chat list + active chat window */
+
+/* Full width layout */
+.layout > div[style*="flex:1"] {
+  margin: 0 !important;
+  max-width: 100% !important;
+  padding: 0 !important;
+  width: 100% !important;
+}
+
+.chats-main {
+  flex: 1;
+  padding: 20px 32px;
+  background: transparent;
+}
+
+/* Chat container (flex, two columns) */
+.chat-container {
+  display: flex;
+  gap: 24px;
+  background: #fff;
+  border-radius: 18px;
+  box-shadow: 0 2px 8px rgba(59,130,246,0.06);
+  overflow: hidden;
+  height: calc(100vh - 120px); /* Adjust based on topbar height */
+  min-height: 500px;
+}
+
+/* LEFT COLUMN: Chat list */
+.chat-list {
+  width: 320px;
+  border-right: 1px solid #eef2f7;
+  display: flex;
+  flex-direction: column;
+  background: #fff;
+}
+
+.chat-list-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  padding: 20px;
+  border-bottom: 1px solid #eef2f7;
+}
+.chat-list-header h2 {
+  font-size: 1.2rem;
+  font-weight: 700;
+  margin: 0;
+}
+.new-chat-btn {
+  background: none;
+  border: none;
+  font-size: 1.2rem;
+  color: #3b82f6;
+  cursor: pointer;
+}
+
+.chat-list-items {
+  flex: 1;
+  overflow-y: auto;
+}
+
+.chat-item {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  padding: 16px 20px;
+  cursor: pointer;
+  transition: background 0.2s;
+  border-bottom: 1px solid #f0f2f5;
+}
+.chat-item:hover {
+  background: #f8fafc;
+}
+.chat-item.active {
+  background: #eef2ff;
+  border-left: 3px solid #3b82f6;
+}
+
+.chat-avatar {
+  width: 48px;
+  height: 48px;
+  border-radius: 50%;
+  object-fit: cover;
+}
+
+.chat-item-info {
+  flex: 1;
+  min-width: 0;
+}
+.chat-name {
+  font-weight: 700;
+  font-size: 0.95rem;
+  margin-bottom: 4px;
+}
+.chat-last-msg {
+  font-size: 0.8rem;
+  color: #64748b;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+.chat-time {
+  font-size: 0.7rem;
+  color: #94a3b8;
+}
+
+/* RIGHT COLUMN: Active chat */
+.chat-active {
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  background: #fff;
+}
+
+.chat-header {
+  display: flex;
+  align-items: center;
+  gap: 16px;
+  padding: 16px 24px;
+  border-bottom: 1px solid #eef2f7;
+}
+.chat-avatar-large {
+  width: 48px;
+  height: 48px;
+  border-radius: 50%;
+  object-fit: cover;
+}
+.chat-header-info {
+  flex: 1;
+}
+.chat-header-name {
+  font-weight: 700;
+  font-size: 1rem;
+}
+.chat-header-status {
+  font-size: 0.75rem;
+  display: flex;
+  align-items: center;
+  gap: 6px;
+}
+.online-dot {
+  display: inline-block;
+  width: 8px;
+  height: 8px;
+  background-color: #10b981;
+  border-radius: 50%;
+}
+
+/* Chat messages area */
+.chat-messages {
+  flex: 1;
+  padding: 20px 24px;
+  overflow-y: auto;
+  display: flex;
+  flex-direction: column;
+  gap: 16px;
+  background: #fafcff;
+}
+
+.message {
+  display: flex;
+  flex-direction: column;
+  max-width: 70%;
+}
+.message.received {
+  align-items: flex-start;
+}
+.message.sent {
+  align-items: flex-end;
+  margin-left: auto;
+}
+.message-bubble {
+  padding: 10px 14px;
+  border-radius: 18px;
+  font-size: 0.9rem;
+  line-height: 1.4;
+  background: #f1f5f9;
+  color: #1e293b;
+}
+.message.sent .message-bubble {
+  background: var(--gradient);
+  color: white;
+}
+.message-time {
+  font-size: 0.7rem;
+  color: #94a3b8;
+  margin-top: 4px;
+  padding: 0 8px;
+}
+
+/* Input area */
+.chat-input-area {
+  display: flex;
+  gap: 12px;
+  padding: 16px 24px;
+  border-top: 1px solid #eef2f7;
+  background: #fff;
+}
+.chat-input-area input {
+  flex: 1;
+  padding: 12px 16px;
+  border: 1px solid #e2e8f0;
+  border-radius: 30px;
+  font-size: 0.9rem;
+  outline: none;
+}
+.chat-input-area input:focus {
+  border-color: #3b82f6;
+}
+.send-btn {
+  background: var(--gradient);
+  border: none;
+  padding: 0 24px;
+  border-radius: 30px;
+  color: white;
+  font-weight: 600;
+  cursor: pointer;
+  transition: opacity 0.2s;
+}
+.send-btn:hover {
+  opacity: 0.85;
+}
+
+/* Responsive */
+@media (max-width: 768px) {
+  .chats-main {
+    padding: 16px;
+  }
+  .chat-list {
+    width: 280px;
+  }
+}
+@media (max-width: 640px) {
+  .chat-container {
+    flex-direction: column;
+    height: auto;
+  }
+  .chat-list {
+    width: 100%;
+    border-right: none;
+    border-bottom: 1px solid #eef2f7;
+  }
+  .chat-active {
+    height: 500px;
+  }
+}

OnlyPrompt.Frontend/css/community.css

@@ -0,0 +1,170 @@
+/* Creators page - Discover creators, filter buttons, creator cards */
+
+/* Full width layout */
+.layout > div[style*="flex:1"] {
+  margin: 0 !important;
+  max-width: 100% !important;
+  padding: 0 !important;
+  width: 100% !important;
+}
+
+.creators-main {
+  background: transparent !important;
+  padding: 20px 32px !important;
+  margin: 0 auto !important;
+  width: 100%;
+  max-width: 1400px;
+}
+
+/* Header */
+.creators-header {
+  text-align: center;
+  margin-bottom: 24px;
+}
+.creators-header h1 {
+  font-size: 2rem;
+  font-weight: 700;
+  margin-bottom: 8px;
+}
+.creators-header p {
+  color: #64748b;
+  font-size: 1rem;
+}
+
+/* Filter buttons */
+.filter-buttons {
+  display: flex;
+  justify-content: center;
+  gap: 12px;
+  flex-wrap: wrap;
+  margin-bottom: 32px;
+  border-bottom: 1px solid #e5e7eb;
+  padding-bottom: 16px;
+}
+.filter-btn {
+  background: transparent;
+  border: none;
+  padding: 8px 20px;
+  font-size: 0.9rem;
+  font-weight: 600;
+  color: #64748b;
+  cursor: pointer;
+  border-radius: 30px;
+  transition: all 0.2s;
+}
+.filter-btn.active {
+  background: var(--gradient);
+  color: white;
+}
+.filter-btn:hover:not(.active) {
+  background: #f1f5f9;
+}
+
+/* Creators grid */
+.creators-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
+  gap: 24px;
+}
+
+/* Creator card */
+.creator-card {
+  background: #fff;
+  border-radius: 18px;
+  box-shadow: 0 2px 8px rgba(59,130,246,0.06);
+  padding: 20px;
+  display: flex;
+  gap: 16px;
+  transition: transform 0.2s, box-shadow 0.2s;
+}
+.creator-card:hover {
+  transform: translateY(-2px);
+  box-shadow: 0 8px 20px rgba(59,130,246,0.12);
+}
+
+.creator-avatar {
+  width: 70px;
+  height: 70px;
+  border-radius: 50%;
+  object-fit: cover;
+  flex-shrink: 0;
+}
+
+.creator-info {
+  flex: 1;
+}
+.creator-name {
+  font-size: 1.2rem;
+  font-weight: 700;
+  margin-bottom: 4px;
+}
+.creator-handle {
+  color: #64748b;
+  font-size: 0.85rem;
+  margin-bottom: 8px;
+}
+.creator-bio {
+  color: #334155;
+  font-size: 0.85rem;
+  line-height: 1.4;
+  margin-bottom: 12px;
+  display: -webkit-box;
+  -webkit-line-clamp: 2;
+  -webkit-box-orient: vertical;
+  overflow: hidden;
+}
+.creator-stats {
+  display: flex;
+  gap: 16px;
+  margin-bottom: 12px;
+  font-size: 0.8rem;
+  color: #64748b;
+}
+.creator-stats i {
+  margin-right: 4px;
+}
+.follow-btn {
+  background: var(--gradient);
+  color: white;
+  border: none;
+  border-radius: 14px;
+  padding: 6px 16px;
+  font-size: 0.8rem;
+  font-weight: 600;
+  cursor: pointer;
+  transition: opacity 0.2s;
+}
+.follow-btn:hover {
+  opacity: 0.85;
+}
+
+/* Responsive */
+@media (max-width: 768px) {
+  .creators-main {
+    padding: 16px !important;
+  }
+  .filter-buttons {
+    gap: 8px;
+  }
+  .filter-btn {
+    padding: 6px 14px;
+    font-size: 0.8rem;
+  }
+}
+
+@media (max-width: 480px) {
+  .creators-main {
+    padding: 12px !important;
+  }
+  .creator-card {
+    flex-direction: column;
+    align-items: center;
+    text-align: center;
+  }
+  .creator-stats {
+    justify-content: center;
+  }
+  .follow-btn {
+    width: 100%;
+  }
+}

OnlyPrompt.Frontend/css/create.css

@@ -0,0 +1,155 @@
+/* Create page - Form for publishing new AI prompts */
+
+/* Full width layout */
+.layout > div[style*="flex:1"] {
+  margin: 0 !important;
+  max-width: 100% !important;
+  padding: 0 !important;
+  width: 100% !important;
+}
+
+.create-main {
+  flex: 1;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  padding: 20px 32px;
+  background: transparent;
+}
+
+.create-container {
+  max-width: 800px;
+  width: 100%;
+  background: #fff;
+  border-radius: 18px;
+  box-shadow: 0 2px 8px rgba(59,130,246,0.06);
+  padding: 32px;
+  transition: box-shadow 0.2s;
+}
+.create-container:hover {
+  box-shadow: 0 8px 20px rgba(59,130,246,0.12);
+}
+
+/* Header */
+.create-header {
+  text-align: center;
+  margin-bottom: 32px;
+}
+.create-header h1 {
+  font-size: 2rem;
+  font-weight: 700;
+  margin-bottom: 8px;
+}
+.create-header p {
+  color: #64748b;
+  font-size: 1rem;
+}
+
+/* Form */
+.create-form {
+  display: flex;
+  flex-direction: column;
+  gap: 24px;
+}
+
+.form-group {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+}
+.form-group label {
+  font-weight: 600;
+  font-size: 0.95rem;
+}
+.form-group input,
+.form-group textarea,
+.form-group select {
+  width: 100%;
+  padding: 12px 14px;
+  border: 1px solid #dbe2ea;
+  border-radius: 12px;
+  font-size: 0.95rem;
+  font-family: inherit;
+  background: #ffffff;
+}
+.form-group input:focus,
+.form-group textarea:focus,
+.form-group select:focus {
+  outline: none;
+  border-color: #7c3aed;
+  box-shadow: 0 0 0 3px rgba(124,58,237,0.1);
+}
+.form-hint {
+  font-size: 0.75rem;
+  color: #64748b;
+}
+
+/* Pricing toggle */
+.pricing-group .pricing-toggle {
+  display: flex;
+  gap: 12px;
+  margin-bottom: 12px;
+}
+.price-option {
+  background: #f1f5f9;
+  border: none;
+  padding: 8px 20px;
+  border-radius: 30px;
+  font-weight: 600;
+  cursor: pointer;
+  transition: all 0.2s;
+  color: #475569;
+}
+.price-option.active {
+  background: var(--gradient);
+  color: white;
+}
+#priceField {
+  margin-top: 8px;
+}
+
+/* Buttons */
+.form-actions {
+  display: flex;
+  gap: 16px;
+  margin-top: 8px;
+}
+.submit-btn, .cancel-btn {
+  flex: 1;
+  border: none;
+  padding: 12px;
+  border-radius: 12px;
+  font-weight: 700;
+  font-size: 1rem;
+  cursor: pointer;
+  transition: opacity 0.2s;
+}
+.submit-btn {
+  background: var(--gradient);
+  color: white;
+}
+.cancel-btn {
+  background: #f1f5f9;
+  color: #475569;
+}
+.submit-btn:hover, .cancel-btn:hover {
+  opacity: 0.85;
+}
+
+/* Responsive */
+@media (max-width: 768px) {
+  .create-container {
+    padding: 24px;
+  }
+  .create-header h1 {
+    font-size: 1.6rem;
+  }
+}
+@media (max-width: 480px) {
+  .create-container {
+    padding: 20px;
+  }
+  .form-actions {
+    flex-direction: column;
+  }
+}

OnlyPrompt.Frontend/css/dashboard.css

@@ -0,0 +1,217 @@
+/* Feed page - Multi-column grid, square images, like/comment/save actions */
+
+/* Full width layout */
+.layout > div[style*="flex:1"] {
+  margin: 0 !important;
+  max-width: 100% !important;
+  padding: 0 !important;
+  width: 100% !important;
+}
+
+.feed-main {
+  background: transparent !important;
+  padding: 20px 32px !important;
+  margin: 0 auto !important;
+  width: 100%;
+  max-width: 1400px;
+}
+
+/* Feed Header (centered) */
+.feed-header {
+  text-align: center;
+  margin-bottom: 24px;
+}
+.feed-header h1 {
+  font-size: 2rem;
+  font-weight: 700;
+  margin-bottom: 8px;
+}
+.feed-header p {
+  color: #64748b;
+  font-size: 1rem;
+}
+
+/* Filter Buttons (centered) */
+.filter-buttons {
+  display: flex;
+  justify-content: center;
+  gap: 12px;
+  flex-wrap: wrap;
+  margin-bottom: 32px;
+  border-bottom: 1px solid #e5e7eb;
+  padding-bottom: 16px;
+}
+.filter-btn {
+  background: transparent;
+  border: none;
+  padding: 8px 20px;
+  font-size: 0.9rem;
+  font-weight: 600;
+  color: #64748b;
+  cursor: pointer;
+  border-radius: 30px;
+  transition: all 0.2s;
+}
+.filter-btn.active {
+  background: var(--gradient);
+  color: white;
+}
+.filter-btn:hover:not(.active) {
+  background: #f1f5f9;
+}
+
+/* Posts Grid - multi‑column like marketplace */
+.posts-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
+  gap: 24px;
+}
+
+/* Post Card */
+.post-card {
+  background: #fff;
+  border-radius: 18px;
+  box-shadow: 0 2px 8px rgba(59,130,246,0.06);
+  overflow: hidden;
+  transition: transform 0.2s, box-shadow 0.2s;
+  cursor: pointer;
+  display: flex;
+  flex-direction: column;
+}
+.post-card:hover {
+  transform: translateY(-2px);
+  box-shadow: 0 8px 20px rgba(59,130,246,0.12);
+}
+
+/* Post Header */
+.post-header {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  padding: 12px;
+  border-bottom: 1px solid #f0f2f5;
+}
+.post-avatar {
+  width: 40px;
+  height: 40px;
+  border-radius: 50%;
+  object-fit: cover;
+}
+.post-author {
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+}
+.post-name {
+  font-weight: 700;
+  font-size: 0.9rem;
+}
+.post-handle {
+  font-size: 0.7rem;
+  color: #64748b;
+}
+.post-date {
+  font-size: 0.7rem;
+  color: #94a3b8;
+}
+
+/* Post Content */
+.post-content {
+  padding: 12px;
+  flex: 1;
+}
+.post-title {
+  font-size: 1.1rem;
+  font-weight: 700;
+  margin: 0 0 6px 0;
+}
+.post-description {
+  color: #334155;
+  font-size: 0.85rem;
+  line-height: 1.4;
+  margin-bottom: 12px;
+  display: -webkit-box;
+  -webkit-line-clamp: 2;
+  -webkit-box-orient: vertical;
+  overflow: hidden;
+}
+/* Square image */
+.post-image {
+  width: 100%;
+  aspect-ratio: 1 / 1;
+  object-fit: cover;
+  border-radius: 12px;
+  margin-top: 8px;
+}
+
+/* Post Actions */
+.post-actions {
+  display: flex;
+  gap: 20px;
+  padding: 10px 12px 12px 12px;
+  border-top: 1px solid #f0f2f5;
+}
+.action-btn {
+  background: none;
+  border: none;
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  font-size: 0.8rem;
+  color: #64748b;
+  cursor: pointer;
+  transition: color 0.2s;
+}
+.action-btn i {
+  font-size: 1.1rem;
+}
+.like-btn:hover {
+  color: #ef4444;
+}
+.comment-btn:hover {
+  color: #3b82f6;
+}
+.share-btn:hover {
+  color: #10b981;
+}
+.save-btn:hover {
+  color: #f59e0b;
+}
+
+/* Responsive: single column on small screens */
+@media (max-width: 700px) {
+  .posts-grid {
+    grid-template-columns: 1fr;
+  }
+}
+
+@media (max-width: 768px) {
+  .feed-main {
+    padding: 16px !important;
+  }
+  .filter-buttons {
+    gap: 8px;
+  }
+  .filter-btn {
+    padding: 6px 14px;
+    font-size: 0.8rem;
+  }
+}
+
+@media (max-width: 480px) {
+  .feed-main {
+    padding: 12px !important;
+  }
+  .post-header {
+    padding: 10px;
+  }
+  .post-content {
+    padding: 10px;
+  }
+  .post-title {
+    font-size: 1rem;
+  }
+  .post-actions {
+    padding: 8px 10px 10px 10px;
+  }
+}

OnlyPrompt.Frontend/css/login.css

@@ -0,0 +1,161 @@
+/*
+  File contains the styles for the login page
+  --> defines the layout of the login screen
+*/
+
+.login-page {
+  min-height: 100vh;
+  display: flex; /* enables flexbox layout for centering */
+  justify-content: center; /* horizontally centers the card */
+  align-items: center; /* vertically centers the card */
+  padding: 24px; /* space inside the page edges */
+  /* Layered background: two soft radial gradients for color accents, then the main background color */
+  background:
+    radial-gradient(circle at top left, rgba(59, 130, 246, 0.12), transparent 35%),
+    radial-gradient(circle at bottom right, rgba(236, 72, 153, 0.10), transparent 30%),
+    var(--bg);
+}
+
+/* Main login card container */
+.login-card {
+  width: 100%;
+  max-width: 430px; /* prevents the card from getting too wide on large screens */
+  background: var(--card); /* uses card color from variables.css */
+  border-radius: 24px; /* rounded corners */
+  box-shadow: var(--shadow); /* soft shadow for card elevation */
+  padding: 40px 32px; /* inner spacing for content */
+}
+
+/* Logo area above the form */
+.login-logo-wrapper {
+  display: flex; /* centers logo horizontally */
+  justify-content: center;
+  margin-bottom: 20px;
+  width: 100%;
+  overflow: hidden; /* hides any part of the logo that overflows the container */
+}
+
+/* Full logo styling */
+.login-logo {
+  width: 100%;
+  max-width: 220px; /* logo never exceeds this width */
+  height: auto;
+  display: block;
+  object-fit: contain; /* keeps logo aspect ratio, prevents stretching */
+}
+
+.login-title {
+  font-size: 2rem;
+  font-weight: 700;
+  text-align: center;
+  margin-bottom: 8px;
+}
+
+.login-subtitle {
+  text-align: center;
+  color: var(--text-muted);
+  margin-bottom: 28px;
+}
+
+/* Form layout */
+.login-form {
+  display: flex;
+  flex-direction: column; /* stack form fields vertically */
+  gap: 18px; /* vertical space between form groups */
+}
+
+.form-group {
+  display: flex;
+  flex-direction: column; /* label above input */
+  gap: 8px; /* space between label and input */
+}
+
+.form-group label {
+  font-weight: 600;
+  font-size: 0.95rem;
+}
+
+.form-group input {
+  width: 100%;
+  padding: 14px 16px; /* vertical and horizontal padding for input */
+  border: 1px solid #dbe2ea; /* subtle border */
+  border-radius: 14px; /* rounded input corners */
+  background: #ffffff;
+  font-size: 1rem;
+  color: var(--text);
+}
+
+/* Highlight input when focused */
+.form-group input:focus {
+  outline: none; /* removes default browser outline */
+  border-color: #7c3aed; /* purple border on focus */
+  box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.10); /* soft glow for focus state */
+}
+
+/* Password field with button inside the same row */
+.password-wrapper {
+  display: flex; /* input and button in one row */
+  align-items: center; /* vertically center input and button */
+  gap: 10px; /* space between input and show/hide button */
+}
+
+.password-wrapper input {
+  flex: 1; /* input takes all available space, button stays compact */
+}
+
+.toggle-password {
+  border: none;
+  background: transparent; /* no background for button */
+  color: #64748b;
+  font-weight: 600;
+  cursor: pointer; /* pointer cursor for better UX */
+}
+
+/* Main login action button */
+.login-button {
+  margin-top: 4px;
+  border: none;
+  border-radius: 14px;
+  padding: 14px 18px;
+  background: var(--gradient); /* uses a gradient background from variables */
+  color: white;
+  font-size: 1rem;
+  font-weight: 700;
+  cursor: pointer;
+  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.22); /* blue shadow for button depth */
+}
+
+.login-button:hover {
+  opacity: 0.95; /* slight fade on hover for feedback */
+}
+
+.signup-text {
+  margin-top: 24px;
+  text-align: center;
+  color: var(--text-muted);
+  /* used for the 'Don't have an account?' and link below the form */
+}
+
+.signup-text a {
+  color: #2563eb;
+  text-decoration: none;
+  font-weight: 600;
+  /* blue link for sign up/login */
+}
+
+/* Smaller spacing and sizing for narrow screens */
+@media (max-width: 480px) {
+  /* Responsive adjustments for small screens (mobile) */
+  .login-card {
+    padding: 28px 20px; /* less padding on mobile */
+    border-radius: 20px; /* slightly less rounded */
+  }
+
+  .login-title {
+    font-size: 1.7rem; /* smaller title on mobile */
+  }
+
+  .login-logo {
+    max-width: 170px; /* smaller logo on mobile */
+  }
+}

OnlyPrompt.Frontend/css/marketplace.css

@@ -0,0 +1,225 @@
+/* Marketplace Page - Prompt cards, filter buttons, full width layout */
+
+/* Full width layout */
+.layout > div[style*="flex:1"] {
+  margin: 0 !important;
+  max-width: 100% !important;
+  padding: 0 !important;
+  width: 100% !important;
+}
+
+.marketplace-main {
+  background: transparent !important;
+  padding: 20px 32px !important;
+  margin: 0 auto !important;
+  width: 100%;
+  max-width: 1400px;
+}
+
+/* Header centering */
+.marketplace-header {
+  text-align: center;
+  margin-bottom: 24px;
+}
+.marketplace-header h1 {
+  font-size: 2rem;
+  font-weight: 700;
+  margin-bottom: 8px;
+}
+.marketplace-header p {
+  color: #64748b;
+  font-size: 1rem;
+}
+
+/* Filter + Sort Row */
+.filter-sort-row {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  flex-wrap: wrap;
+  gap: 16px;
+  margin-bottom: 32px;
+  border-bottom: 1px solid #e5e7eb;
+  padding-bottom: 16px;
+}
+
+/* Filter buttons - centered */
+.filter-buttons {
+  display: flex;
+  justify-content: center;
+  gap: 12px;
+  flex-wrap: wrap;
+  flex: 1;
+  margin: 0;
+  border-bottom: none;
+  padding-bottom: 0;
+}
+
+.filter-btn {
+  background: transparent;
+  border: none;
+  padding: 8px 20px;
+  font-size: 0.9rem;
+  font-weight: 600;
+  color: #64748b;
+  cursor: pointer;
+  border-radius: 30px;
+  transition: all 0.2s;
+}
+.filter-btn.active {
+  background: var(--gradient);
+  color: white;
+}
+.filter-btn:hover:not(.active) {
+  background: #f1f5f9;
+}
+
+/* Sort Dropdown - right aligned */
+.sort-dropdown {
+  background: #f8fafc;
+  border: 1px solid #e2e8f0;
+  border-radius: 30px;
+  padding: 8px 16px;
+  font-size: 0.9rem;
+  font-weight: 500;
+  color: #334155;
+  cursor: pointer;
+  outline: none;
+  margin-left: auto;
+}
+
+/* Prompts grid */
+.prompts-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
+  gap: 24px;
+}
+
+/* Prompt card */
+.prompt-card {
+  background: #fff;
+  border-radius: 18px;
+  box-shadow: 0 2px 8px rgba(59,130,246,0.06);
+  overflow: hidden;
+  transition: transform 0.2s, box-shadow 0.2s;
+  display: flex;
+  flex-direction: column;
+}
+.prompt-card:hover {
+  transform: translateY(-2px);
+  box-shadow: 0 8px 20px rgba(59,130,246,0.12);
+}
+
+.prompt-img {
+  width: 100%;
+  height: 160px;
+  object-fit: cover;
+}
+
+.prompt-info {
+  padding: 16px;
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+}
+
+.prompt-title {
+  font-size: 1.2rem;
+  font-weight: 700;
+  margin: 0;
+}
+
+.prompt-author {
+  color: #64748b;
+  font-size: 0.85rem;
+}
+
+.prompt-description {
+  color: #334155;
+  font-size: 0.85rem;
+  line-height: 1.4;
+  margin: 0;
+  display: -webkit-box;
+  -webkit-line-clamp: 2;
+  -webkit-box-orient: vertical;
+  overflow: hidden;
+}
+
+.prompt-rating {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  font-size: 0.85rem;
+  color: #f59e0b;
+}
+.prompt-rating span:first-child i {
+  color: #f59e0b;
+}
+.prompt-rating span:last-child {
+  color: #64748b;
+}
+
+.prompt-price {
+  font-size: 1.3rem;
+  font-weight: 700;
+  color: #3b82f6;
+  margin: 8px 0 4px;
+}
+
+.prompt-actions {
+  display: flex;
+  gap: 12px;
+  margin-top: 8px;
+}
+.buy-btn, .details-btn {
+  flex: 1;
+  border: none;
+  border-radius: 14px;
+  padding: 8px 12px;
+  font-size: 0.85rem;
+  font-weight: 600;
+  cursor: pointer;
+  transition: opacity 0.2s;
+}
+.buy-btn {
+  background: var(--gradient);
+  color: white;
+}
+.details-btn {
+  background: #f1f5f9;
+  color: #334155;
+}
+.buy-btn:hover, .details-btn:hover {
+  opacity: 0.85;
+}
+
+/* Responsive */
+@media (max-width: 700px) {
+  .filter-sort-row {
+    flex-direction: column;
+    align-items: stretch;
+  }
+  .sort-dropdown {
+    align-self: flex-end;
+    margin-left: 0;
+  }
+}
+
+@media (max-width: 768px) {
+  .marketplace-main {
+    padding: 16px !important;
+  }
+  .filter-btn {
+    padding: 6px 14px;
+    font-size: 0.8rem;
+  }
+}
+
+@media (max-width: 480px) {
+  .marketplace-main {
+    padding: 12px !important;
+  }
+  .prompt-actions {
+    flex-direction: column;
+  }
+}

OnlyPrompt.Frontend/css/post-detail.css

@@ -0,0 +1,217 @@
+/* Post Detail page - Full prompt view, rating, example output, unlock button */
+
+/* Full width layout */
+.layout > div[style*="flex:1"] {
+  margin: 0 !important;
+  max-width: 100% !important;
+  padding: 0 !important;
+  width: 100% !important;
+}
+
+.post-detail-main {
+  flex: 1;
+  display: flex;
+  justify-content: center;
+  padding: 20px 32px;
+  background: transparent;
+}
+
+.post-detail-container {
+  max-width: 900px;
+  width: 100%;
+  background: #fff;
+  border-radius: 18px;
+  box-shadow: 0 2px 8px rgba(59,130,246,0.06);
+  padding: 32px;
+  transition: box-shadow 0.2s;
+}
+.post-detail-container:hover {
+  box-shadow: 0 8px 20px rgba(59,130,246,0.12);
+}
+
+/* Header */
+.post-header {
+  margin-bottom: 28px;
+  border-bottom: 1px solid #eef2f7;
+  padding-bottom: 20px;
+}
+.post-title {
+  font-size: 2rem;
+  font-weight: 800;
+  margin-bottom: 12px;
+}
+.post-meta {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 12px;
+  margin-bottom: 12px;
+}
+.category {
+  background: #f1f5f9;
+  padding: 4px 12px;
+  border-radius: 30px;
+  font-size: 0.8rem;
+  font-weight: 600;
+  color: #3b82f6;
+}
+.updated {
+  font-size: 0.85rem;
+  color: #64748b;
+}
+.post-stats {
+  display: flex;
+  gap: 20px;
+  font-size: 0.9rem;
+  color: #475569;
+}
+.post-stats i {
+  margin-right: 6px;
+}
+
+/* Prompt Section */
+.prompt-section {
+  margin-bottom: 28px;
+}
+.prompt-section h2 {
+  font-size: 1.3rem;
+  font-weight: 700;
+  margin-bottom: 16px;
+  letter-spacing: -0.3px;
+}
+.prompt-content {
+  background: #f8fafc;
+  padding: 20px;
+  border-radius: 16px;
+  font-size: 1rem;
+  line-height: 1.5;
+  color: #1e293b;
+}
+.prompt-content ul {
+  margin-top: 12px;
+  padding-left: 20px;
+}
+.prompt-content li {
+  margin-bottom: 6px;
+}
+
+/* Rating & Like */
+.rating-section {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  flex-wrap: wrap;
+  gap: 16px;
+  margin-bottom: 28px;
+  padding-bottom: 20px;
+  border-bottom: 1px solid #eef2f7;
+}
+.rating-stars {
+  display: flex;
+  gap: 20px;
+  font-size: 1.1rem;
+  font-weight: 700;
+}
+.rating-stars i {
+  color: #f59e0b;
+  margin-right: 6px;
+}
+.like-btn {
+  background: none;
+  border: 1px solid #e2e8f0;
+  padding: 8px 18px;
+  border-radius: 30px;
+  font-size: 0.9rem;
+  font-weight: 600;
+  color: #475569;
+  cursor: pointer;
+  transition: all 0.2s;
+}
+.like-btn:hover {
+  background: #f1f5f9;
+  border-color: #cbd5e1;
+}
+.like-btn i {
+  margin-right: 6px;
+}
+
+/* Example Output Section */
+.example-section {
+  margin-bottom: 32px;
+}
+.example-section h2 {
+  font-size: 1.3rem;
+  font-weight: 700;
+  margin-bottom: 16px;
+}
+.example-content {
+  background: #ffffff;
+  border: 1px solid #eef2f7;
+  border-radius: 16px;
+  padding: 20px;
+}
+.example-content h3 {
+  font-size: 1rem;
+  font-weight: 700;
+  margin-bottom: 12px;
+  color: #3b82f6;
+}
+.example-output-text {
+  font-size: 0.95rem;
+  line-height: 1.5;
+  color: #334155;
+}
+.example-output-text p {
+  margin-bottom: 12px;
+}
+.example-image {
+  margin-top: 16px;
+}
+.example-image img {
+  max-width: 100%;
+  border-radius: 12px;
+}
+
+/* Unlock Section */
+.unlock-section {
+  text-align: center;
+  margin-top: 16px;
+}
+.unlock-btn {
+  background: var(--gradient);
+  border: none;
+  padding: 14px 32px;
+  border-radius: 40px;
+  font-size: 1.1rem;
+  font-weight: 700;
+  color: white;
+  cursor: pointer;
+  transition: opacity 0.2s;
+}
+.unlock-btn:hover {
+  opacity: 0.9;
+}
+
+/* Responsive */
+@media (max-width: 768px) {
+  .post-detail-main {
+    padding: 16px;
+  }
+  .post-detail-container {
+    padding: 24px;
+  }
+  .post-title {
+    font-size: 1.6rem;
+  }
+}
+@media (max-width: 480px) {
+  .post-detail-container {
+    padding: 20px;
+  }
+  .rating-section {
+    flex-direction: column;
+    align-items: flex-start;
+  }
+  .prompt-content {
+    padding: 16px;
+  }
+}

OnlyPrompt.Frontend/css/profile.css

@@ -0,0 +1,94 @@
+/* Profile Page - Full width layout, darker share button, responsive grid */
+
+/* Force main content container to full width, remove centering and max-width */
+.layout > div[style*="flex:1"] {
+  margin: 0 !important;
+  max-width: 100% !important;
+  padding: 0 !important;
+  width: 100% !important;
+}
+
+/* Inner spacing for the profile card */
+.profile-main {
+  background: transparent !important;
+  border-radius: 0 !important;
+  box-shadow: none !important;
+  padding: 20px 32px !important;
+  margin: 0 auto !important;
+  width: 100%;
+  max-width: 1600px;          /* Limits content on very large screens, but still wide */
+}
+
+/* Make prompts grid use more columns on large screens */
+.profile-main section:last-child {
+  display: grid !important;
+  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)) !important;
+  gap: 24px !important;
+  width: 100% !important;
+}
+
+/* Share button: darker background and text */
+.profile-header button:last-child {
+  background: #cbd5e1 !important;   /* darker gray */
+  color: #1e293b !important;
+  box-shadow: none !important;
+  border: none !important;
+}
+
+/* Buttons keep rounded corners */
+.login-button {
+  border-radius: 14px !important;
+}
+
+/* Prompt cards: rounded corners */
+.profile-main section > div {
+  border-radius: 18px !important;
+  box-shadow: 0 2px 8px rgba(59,130,246,0.06);
+}
+
+/* Prompt images: rounded corners */
+.profile-main section img {
+  border-radius: 12px !important;
+}
+
+/* Avatar remains round */
+.profile-avatar {
+  border-radius: 50% !important;
+}
+
+/* All outer containers stay square */
+.layout,
+.profile-main,
+.profile-header,
+.profile-tabs,
+nav {
+  border-radius: 0 !important;
+}
+
+/* Responsive: tablets */
+@media (max-width: 768px) {
+  .profile-main {
+    padding: 16px !important;
+  }
+  .profile-header {
+    flex-direction: column;
+    align-items: flex-start !important;
+  }
+  .profile-header > div:last-child {
+    flex-direction: row;
+    width: 100%;
+  }
+}
+
+/* Responsive: mobile */
+@media (max-width: 480px) {
+  .profile-main {
+    padding: 12px !important;
+  }
+  .profile-header > div:last-child {
+    flex-direction: column;
+  }
+  .profile-main section:last-child {
+    grid-template-columns: 1fr !important;
+  }
+}

OnlyPrompt.Frontend/css/settings.css

@@ -0,0 +1,184 @@
+/* Settings page - tabs, form styling */
+
+.layout > div[style*="flex:1"] {
+  margin: 0 !important;
+  max-width: 100% !important;
+  padding: 0 !important;
+  width: 100% !important;
+}
+
+.settings-main {
+  flex: 1;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  padding: 20px 32px;
+  background: transparent;
+}
+
+.settings-container {
+  max-width: 700px;
+  width: 100%;
+  background: #fff;
+  border-radius: 18px;
+  box-shadow: 0 2px 8px rgba(59,130,246,0.06);
+  padding: 32px;
+}
+
+.settings-header {
+  text-align: center;
+  margin-bottom: 28px;
+}
+.settings-header h1 {
+  font-size: 1.8rem;
+  font-weight: 700;
+  margin-bottom: 8px;
+}
+.settings-header p {
+  color: #64748b;
+  font-size: 0.95rem;
+}
+
+/* Tabs */
+.settings-tabs {
+  display: flex;
+  gap: 8px;
+  border-bottom: 1px solid #eef2f7;
+  margin-bottom: 28px;
+}
+.tab-btn {
+  background: transparent;
+  border: none;
+  padding: 10px 20px;
+  font-size: 1rem;
+  font-weight: 600;
+  color: #64748b;
+  cursor: pointer;
+  border-bottom: 2px solid transparent;
+  transition: all 0.2s;
+}
+.tab-btn.active {
+  color: #3b82f6;
+  border-bottom-color: #3b82f6;
+}
+.tab-btn:hover:not(.active) {
+  color: #334155;
+}
+
+/* Tab content */
+.tab-content {
+  display: none;
+}
+.tab-content.active {
+  display: block;
+}
+
+/* Form elements */
+.settings-form {
+  display: flex;
+  flex-direction: column;
+  gap: 24px;
+}
+.form-group {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+}
+.form-group label {
+  font-weight: 600;
+  font-size: 0.95rem;
+}
+.form-group input,
+.form-group textarea {
+  width: 100%;
+  padding: 12px 14px;
+  border: 1px solid #dbe2ea;
+  border-radius: 12px;
+  font-size: 0.95rem;
+  font-family: inherit;
+}
+.form-group input:focus,
+.form-group textarea:focus {
+  outline: none;
+  border-color: #7c3aed;
+  box-shadow: 0 0 0 3px rgba(124,58,237,0.1);
+}
+.checkbox-label {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  font-weight: normal;
+  cursor: pointer;
+}
+.checkbox-label input {
+  width: auto;
+  margin: 0;
+}
+
+/* Avatar upload */
+.avatar-upload {
+  display: flex;
+  align-items: center;
+  gap: 16px;
+  flex-wrap: wrap;
+}
+.settings-avatar {
+  width: 80px;
+  height: 80px;
+  border-radius: 50%;
+  object-fit: cover;
+}
+.upload-btn {
+  background: #f1f5f9;
+  border: none;
+  padding: 8px 16px;
+  border-radius: 30px;
+  font-weight: 600;
+  cursor: pointer;
+}
+.upload-btn:hover {
+  background: #e2e8f0;
+}
+
+/* Save button */
+.save-btn {
+  background: var(--gradient);
+  color: white;
+  border: none;
+  padding: 12px;
+  border-radius: 12px;
+  font-weight: 700;
+  font-size: 1rem;
+  cursor: pointer;
+  width: 100%;
+  transition: opacity 0.2s;
+}
+.save-btn:hover {
+  opacity: 0.85;
+}
+
+/* Responsive */
+@media (max-width: 768px) {
+  .settings-container {
+    padding: 24px;
+  }
+  .settings-header h1 {
+    font-size: 1.5rem;
+  }
+}
+@media (max-width: 480px) {
+  .settings-container {
+    padding: 20px;
+  }
+  .settings-tabs {
+    gap: 4px;
+  }
+  .tab-btn {
+    padding: 8px 12px;
+    font-size: 0.9rem;
+  }
+  .avatar-upload {
+    flex-direction: column;
+    align-items: flex-start;
+  }
+}

OnlyPrompt.Frontend/css/sidebar.css

@@ -0,0 +1,170 @@
+/*
+  Sidebar styles for OnlyPrompt
+  - modern soft card look
+  - responsive: full sidebar on desktop, icon-only on smaller screens
+  - logout button appears directly after the last menu item with separator line
+*/
+
+.sidebar-shell {
+  width: 100%;
+  height: 100%;
+  background: #ffffff;
+  border-right: 1px solid #eef2f7;
+  padding: 24px 16px;
+  display: flex;
+  flex-direction: column;
+}
+
+/* Logo */
+.sidebar-logo {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  min-height: 72px;
+  margin-bottom: 32px;
+  padding: 6px 8px;
+}
+
+.sidebar-logo-full {
+  max-width: 170px;
+  width: 100%;
+  height: auto;
+  display: block;
+}
+
+.sidebar-logo-icon {
+  width: 36px;
+  height: 36px;
+  display: none;
+}
+
+/* Navigation – normal block layout, no flex grow */
+.sidebar {
+  /* No flex:1 – keeps navigation at its natural height */
+}
+
+.sidebar ul {
+  list-style: none;
+  margin: 0;
+  padding: 0;
+}
+
+.sidebar li {
+  margin-bottom: 8px;
+}
+
+.sidebar a {
+  display: flex;
+  align-items: center;
+  gap: 14px;
+  text-decoration: none;
+  color: #475569;
+  font-size: 1rem;
+  font-weight: 600;
+  padding: 12px 16px;
+  transition: background 0.2s ease, color 0.2s ease;
+}
+
+.sidebar a:hover {
+  background: #f1f5f9;
+}
+
+.sidebar i {
+  font-size: 1.3rem;
+  flex-shrink: 0;
+}
+
+.icon-blue {
+  color: #3b82f6 !important;
+}
+
+.icon-purple {
+  color: #8b5cf6 !important;
+}
+
+.icon-pink {
+  color: #ec4899 !important;
+}
+
+/* Active item */
+.sidebar a.active {
+  background: #eef2ff;
+  color: #2563eb;
+  border-left: 3px solid #3b82f6;
+}
+
+/* Bottom logout area – directly after the menu, with separator line */
+.sidebar-bottom {
+  margin-top: 16px;          /* Small gap above the separator */
+  border-top: 1px solid #eef2f7;
+  padding-top: 16px;
+}
+
+.sidebar-logout {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 12px 16px;
+  text-decoration: none;
+  color: #64748b;
+  font-weight: 600;
+  transition: background 0.2s ease;
+}
+
+.sidebar-logout:hover {
+  background: #f1f5f9;
+}
+
+.logout-left {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+}
+
+.sidebar-logout i {
+  font-size: 1.2rem;
+}
+
+.logout-arrow {
+  color: #cbd5e1;
+}
+
+/* Responsive: icon-only sidebar */
+@media (max-width: 900px) {
+  .sidebar-shell {
+    padding-left: 12px;
+    padding-right: 12px;
+  }
+
+  .sidebar-logo-full {
+    display: none;
+  }
+
+  .sidebar-logo-icon {
+    display: block;
+  }
+
+  .sidebar .nav-text,
+  .sidebar-logout .nav-text,
+  .logout-arrow {
+    display: none;
+  }
+
+  .sidebar a,
+  .sidebar-logout {
+    justify-content: center;
+    padding: 12px;
+  }
+
+  .sidebar a.active {
+    border-left: none;
+    border-right: 3px solid #3b82f6;
+  }
+}
+
+@media (max-width: 700px) {
+  .sidebar a,
+  .sidebar-logout {
+    padding: 10px;
+  }
+}

OnlyPrompt.Frontend/css/signup.css

@@ -0,0 +1,169 @@
+/*
+  File contains the styles for the signup page
+  --> defines the layout of the signup screen
+*/
+
+.login-page {
+  min-height: 100vh;
+  display: flex; 
+  justify-content: center; 
+  align-items: center;
+  padding: 24px; 
+  background:
+    radial-gradient(circle at top left, rgba(59, 130, 246, 0.12), transparent 35%),
+    radial-gradient(circle at bottom right, rgba(236, 72, 153, 0.10), transparent 30%),
+    var(--bg);
+}
+
+/* Main signup card container */
+.login-card {
+  width: 100%;
+  max-width: 430px;
+  background: var(--card); /*variable.css*/
+  border-radius: 24px;
+  box-shadow: var(--shadow);
+  padding: 40px 32px;
+}
+
+/* Logo area above the form */
+.login-logo-wrapper {
+  display: flex;
+  justify-content: center;
+  margin-bottom: 20px;
+  width: 100%;
+  overflow: hidden;
+}
+
+/* Full logo styling */
+.login-logo {
+  width: 100%;
+  max-width: 220px;
+  height: auto;
+  display: block;
+  object-fit: contain;
+}
+
+.login-title {
+  font-size: 2rem;
+  font-weight: 700;
+  text-align: center;
+  margin-bottom: 8px;
+}
+
+.login-subtitle {
+  text-align: center;
+  color: var(--text-muted);
+  margin-bottom: 28px;
+}
+
+/* Form layout */
+.login-form {
+  display: flex;
+  flex-direction: column;
+  gap: 18px;
+}
+
+.form-group {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+}
+
+.form-group label {
+  font-weight: 600;
+  font-size: 0.95rem;
+}
+
+.form-group input {
+  width: 100%;
+  padding: 14px 16px;
+  border: 1px solid #dbe2ea;
+  border-radius: 14px;
+  background: #ffffff;
+  font-size: 1rem;
+  color: var(--text);
+}
+
+/* Highlight input when focused */
+.form-group input:focus {
+  outline: none;
+  border-color: #7c3aed;
+  box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.10);
+}
+
+/* Password field with button inside the same row */
+.password-wrapper {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+}
+
+.password-wrapper input {
+  flex: 1;
+}
+
+.toggle-password {
+  border: none;
+  background: transparent;
+  color: #64748b;
+  font-weight: 600;
+  cursor: pointer;
+}
+
+.signup-terms {
+  text-align: center;
+  color: var(--text-muted);
+  font-size: 0.85rem;
+  margin: 18px 0 0 0;
+}
+.signup-terms a {
+  color: #2563eb;
+  text-decoration: none;
+  font-weight: 600;
+}
+
+/* Main login action button */
+.login-button {
+  margin-top: 4px;
+  border: none;
+  border-radius: 14px;
+  padding: 14px 18px;
+  background: var(--gradient);
+  color: white;
+  font-size: 1rem;
+  font-weight: 700;
+  cursor: pointer;
+  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.22);
+}
+
+.login-button:hover {
+  opacity: 0.95;
+}
+
+.signup-text {
+  margin-top: 24px;
+  text-align: center;
+  color: var(--text-muted);
+}
+
+.signup-text a {
+  color: #2563eb;
+  text-decoration: none;
+  font-weight: 600;
+}
+
+/* Smaller spacing and sizing for narrow screens */
+@media (max-width: 480px) {
+  .login-card {
+    padding: 28px 20px;
+    border-radius: 20px;
+  }
+
+  .login-title {
+    font-size: 1.7rem;
+  }
+
+  .login-logo {
+  max-width: 170px;
+  }
+}

OnlyPrompt.Frontend/css/topbar.css

@@ -0,0 +1,125 @@
+/*
+  Topbar styles for OnlyPrompt
+  - clean, modern, full-width
+  - search bar centered (expands on full screen), profile avatar always on the right
+  - ONLY search bar and avatar have rounded corners
+*/
+
+.topbar-shell {
+  width: 100%;
+  background: #ffffff;
+  border-bottom: 1px solid #eef2f7;
+  padding: 16px 32px;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 18px;
+}
+
+.topbar-search {
+  flex: 1;                       /* Takes all available space */
+  max-width: none;               /* No upper limit, expands freely */
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  background: #f8fafc;
+  border: 1px solid #e2e8f0;
+  padding: 10px 20px;
+  border-radius: 14px;           /* Rounded like login inputs */
+}
+
+.topbar-search i {
+  color: #94a3b8;
+  font-size: 1.3rem;
+}
+
+.topbar-search input {
+  width: 100%;
+  border: none;
+  outline: none;
+  background: transparent;
+  font-size: 0.95rem;
+  color: #334155;
+}
+
+.topbar-search input::placeholder {
+  color: #94a3b8;
+  font-weight: 400;
+}
+
+/* Icons and avatar container */
+.topbar-actions {
+  display: flex;
+  align-items: center;
+  gap: 16px;
+}
+
+.topbar-icon-btn {
+  background: transparent;
+  border: none;
+  font-size: 1.4rem;
+  color: #475569;
+  cursor: pointer;
+  padding: 8px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  border-radius: 50%;
+  transition: background 0.2s, color 0.2s;
+}
+
+.topbar-icon-btn:hover {
+  background: #f1f5f9;
+  color: #3b82f6;
+}
+
+.topbar-avatar-btn {
+  border: none;
+  background: transparent;
+  padding: 0;
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.topbar-avatar {
+  width: 48px;
+  height: 48px;
+  object-fit: cover;
+  border: 1px solid #e2e8f0;
+  border-radius: 50%;             /* Avatar round */
+}
+
+/* Responsive adjustments */
+@media (max-width: 768px) {
+  .topbar-shell {
+    padding: 12px 20px;
+  }
+  .topbar-search {
+    padding: 8px 16px;
+  }
+  .topbar-search i {
+    font-size: 1.1rem;
+  }
+  .topbar-avatar {
+    width: 40px;
+    height: 40px;
+  }
+    .topbar-icon-btn {
+    font-size: 1.2rem;
+    padding: 6px;
+  }
+  .topbar-actions {
+    gap: 8px;
+  }
+}
+
+@media (max-width: 480px) {
+  .topbar-shell {
+    padding: 10px 16px;
+  }
+  .topbar-search {
+    padding: 6px 12px;
+  }
+}

OnlyPrompt.Frontend/css/variables.css

@@ -0,0 +1,27 @@
+/* 
+  This file contains global design variables such as colors,
+  gradients, spacing, and shadows
+  --> these variables ensure a consistent design accross the whole application
+*/
+
+:root {
+  /* Main gradient used for buttons and highlights */
+  --gradient: linear-gradient(90deg, #7c3aed, #3b82f6, #ec4899);
+
+  /* Background color of the application */
+  --bg: #f8fafc;
+
+  /* Default text color */
+  --text: #0f172a;
+
+  /* Container background */
+  --card: #ffffff;
+
+  /* Border radius for rounded elements */
+  --radius: 16px;
+
+  /* Standard shadow for cards and components */
+  --shadow: 0 10px 30px rgba(0,0,0,0.08);
+}
+
+  

OnlyPrompt.Frontend/dashboard.html

@@ -0,0 +1,166 @@
+<!-- OnlyPrompt - Feed page: 
+      - Social media style post feed with likes, comments, saves, and share actions (following/foryou tabs) -->
+
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>OnlyPrompt - Feed</title>
+  <link rel="stylesheet" href="../css/variables.css">
+  <link rel="stylesheet" href="../css/base.css">
+  <link rel="stylesheet" href="../css/sidebar.css">
+  <link rel="stylesheet" href="../css/login.css">
+  <link rel="stylesheet" href="../css/topbar.css">
+  <link rel="stylesheet" href="../css/dashboard.css">
+  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.min.css">
+</head>
+<body>
+  <div class="layout" style="display: flex; min-height: 100vh; background: var(--bg);">
+    
+    <div id="sidebar-container"></div>
+
+    <div style="flex:1; margin:40px auto; max-width:950px;">
+      
+      <div id="topbar-container"></div>
+
+      <main class="feed-main">
+        
+        <!-- Optional: Feed Header -->
+        <div class="feed-header">
+          <h1>Feed</h1>
+          <p>Latest prompts and inspiration from creators you follow</p>
+        </div>
+
+        <!-- Filter Buttons (optional) -->
+        <div class="filter-buttons">
+          <button class="filter-btn active">For You</button>
+          <button class="filter-btn">Following</button>
+          <button class="filter-btn">Trending</button>
+          <button class="filter-btn">Recent</button>
+        </div>
+
+        <!-- Posts Grid (einfach als Liste / Grid – hier als Grid wie Marketplace) -->
+        <div class="posts-grid">
+          
+          <!-- Post 1 -->
+          <div class="post-card" onclick="location.href='post-detail.html?id=1'">
+            <div class="post-header">
+              <img src="../images/content/creator1.png" alt="Sarah Jenkins" class="post-avatar">
+              <div class="post-author">
+                <span class="post-name">Sarah Jenkins</span>
+                <span class="post-handle">@sarahj</span>
+              </div>
+              <span class="post-date">2 hours ago</span>
+            </div>
+            <div class="post-content">
+              <h3 class="post-title">Conceptual Landscape Art</h3>
+              <p class="post-description">Enchanting, vintage, antique vibes. A journey through surreal landscapes.</p>
+              <img src="../images/content/feed1.png" alt="Conceptual Landscape" class="post-image">
+            </div>
+            <!-- Like, Comment, Share, Save Buttons -->
+            <div class="post-actions">
+              <button class="action-btn like-btn"><i class="bi bi-heart"></i> <span>128</span></button>
+              <button class="action-btn comment-btn"><i class="bi bi-chat"></i> <span>15</span></button>
+              <button class="action-btn share-btn"><i class="bi bi-share"></i></button>
+              <button class="action-btn save-btn"><i class="bi bi-bookmark"></i></button>
+            </div>
+          </div>
+
+          <!-- Post 2 -->
+          <div class="post-card" onclick="location.href='post-detail.html?id=2'">
+            <div class="post-header">
+              <img src="../images/content/creator2.png" alt="Alex Chen" class="post-avatar">
+              <div class="post-author">
+                <span class="post-name">Alex Chen</span>
+                <span class="post-handle">@alexchen</span>
+              </div>
+              <span class="post-date">Yesterday</span>
+            </div>
+            <div class="post-content">
+              <h3 class="post-title">Minimalist Logo Design</h3>
+              <p class="post-description">Clean, modern, minimalist logo for tech startups.</p>
+              <img src="../images/content/feed2.png" alt="Minimalist Logo" class="post-image">
+            </div>
+            <!-- Like, Comment, Share, Save Buttons -->
+            <div class="post-actions">
+              <button class="action-btn like-btn"><i class="bi bi-heart"></i> <span>128</span></button>
+              <button class="action-btn comment-btn"><i class="bi bi-chat"></i> <span>15</span></button>
+              <button class="action-btn share-btn"><i class="bi bi-share"></i></button>
+              <button class="action-btn save-btn"><i class="bi bi-bookmark"></i></button>
+            </div>
+          </div>
+
+          <!-- Post 3 -->
+          <div class="post-card" onclick="location.href='post-detail.html?id=3'">
+            <div class="post-header">
+              <img src="../images/content/creator3.png" alt="Mia Wong" class="post-avatar">
+              <div class="post-author">
+                <span class="post-name">Mia Wong</span>
+                <span class="post-handle">@miawong</span>
+              </div>
+              <span class="post-date">3 days ago</span>
+            </div>
+            <div class="post-content">
+              <h3 class="post-title">Futuristic Cityscape</h3>
+              <p class="post-description">Cyberpunk neon city with flying cars and rain.</p>
+              <img src="../images/content/feed3.png" alt="Cityscape" class="post-image">
+            </div>
+            <!-- Like, Comment, Share, Save Buttons -->
+            <div class="post-actions">
+              <button class="action-btn like-btn"><i class="bi bi-heart"></i> <span>128</span></button>
+              <button class="action-btn comment-btn"><i class="bi bi-chat"></i> <span>15</span></button>
+              <button class="action-btn share-btn"><i class="bi bi-share"></i></button>
+              <button class="action-btn save-btn"><i class="bi bi-bookmark"></i></button>
+            </div>
+          </div>
+
+          <!-- Post 4 -->
+          <div class="post-card" onclick="location.href='post-detail.html?id=4'">
+            <div class="post-header">
+              <img src="../images/content/creator4.png" alt="Tom Rivera" class="post-avatar">
+              <div class="post-author">
+                <span class="post-name">Tom Rivera</span>
+                <span class="post-handle">@tomrivera</span>
+              </div>
+              <span class="post-date">5 days ago</span>
+            </div>
+            <div class="post-content">
+              <h3 class="post-title">Watercolor Pet Portrait</h3>
+              <p class="post-description">Soft watercolor style, cute pet portrait.</p>
+              <img src="../images/content/feed4.png" alt="Watercolor Pet" class="post-image">
+            </div>
+            <!-- Like, Comment, Share, Save Buttons -->
+            <div class="post-actions">
+              <button class="action-btn like-btn"><i class="bi bi-heart"></i> <span>128</span></button>
+              <button class="action-btn comment-btn"><i class="bi bi-chat"></i> <span>15</span></button>
+              <button class="action-btn share-btn"><i class="bi bi-share"></i></button>
+              <button class="action-btn save-btn"><i class="bi bi-bookmark"></i></button>
+            </div>
+          </div>
+
+        </div>
+      </main>
+    </div>
+  </div>
+
+  <script>
+    fetch('../html/sidebar.html')
+      .then(r => r.text())
+      .then(data => {
+        document.getElementById('sidebar-container').innerHTML = data;
+        // Remove 'active' from all sidebar links
+        document.querySelectorAll('#sidebar-container .sidebar a').forEach(link => {
+          link.classList.remove('active');
+        });
+        // Set 'active' on the first link (Dashboard) - index 0
+        const firstLink = document.querySelectorAll('#sidebar-container .sidebar li a')[0];
+        if (firstLink) firstLink.classList.add('active');
+      });
+
+    fetch('../html/topbar.html')
+      .then(r => r.text())
+      .then(data => document.getElementById('topbar-container').innerHTML = data);
+  </script>
+</body>
+</html>

OnlyPrompt.Frontend/js/linq.js

@@ -0,0 +1,140 @@
+// LINQ-like Enumerable class wrapping lazy generator chains
+
+class Enumerable {
+    constructor(iteratorFn) {
+        this._iteratorFn = iteratorFn;
+    }
+
+    [Symbol.iterator]() {
+        return this._iteratorFn();
+    }
+
+    _chain(generatorFn) {
+        const source = this;
+        return new Enumerable(function* () {
+            yield* generatorFn(source);
+        });
+    }
+
+    where(predicate) {
+        return this._chain(function* (source) {
+            for (const item of source)
+                if (predicate(item))
+                    yield item;
+        });
+    }
+
+    select(selector) {
+        return this._chain(function* (source) {
+            for (const item of source)
+                yield selector(item);
+        });
+    }
+
+    take(count) {
+        count = Math.max(0, count);
+        return this._chain(function* (source) {
+            for (const item of source) {
+                if (count-- <= 0) break;
+                yield item;
+            }
+        });
+    }
+
+    skip(count) {
+        count = Math.max(0, count);
+        return this._chain(function* (source) {
+            for (const item of source) {
+                if (count-- > 0) continue;
+                yield item;
+            }
+        });
+    }
+
+    isLast() {
+        return this._chain(function* (source) {
+            const iter = source[Symbol.iterator]();
+            let current = iter.next();
+            let index = 0;
+            while (!current.done) {
+                const next = iter.next();
+                yield [current.value, next.done, index];
+                current = next;
+                index++;
+            }
+        });
+    }
+
+    forEach(action) {
+        for (const item of this) {
+            if (Array.isArray(item)) {
+                action(...item);
+            } else {
+                action(item);
+            }
+        }
+    }
+
+    toArray() {
+        return Array.from(this);
+    }
+
+    firstOrDefault(predicate) {
+        const source = predicate ? this.where(predicate) : this;
+        for (const item of source) return item;
+        return undefined;
+    }
+
+    first(predicate) {
+        const source = predicate ? this.where(predicate) : this;
+        for (const item of source) return item;
+        throw new Error("No elements in sequence.");
+    }
+
+    lastOrDefault(predicate) {
+        const source = predicate ? this.where(predicate) : this;
+        let lastValue = undefined;
+        for (const item of source) lastValue = item;
+        return lastValue;
+    }
+
+    last(predicate) {
+        const source = predicate ? this.where(predicate) : this;
+        let lastValue = undefined;
+        let found = false;
+        for (const item of source) {
+            lastValue = item;
+            found = true;
+        }
+        if (!found) throw new Error("No elements in sequence.");
+        return lastValue;
+    }
+
+    any(predicate) {
+        const source = predicate ? this.where(predicate) : this;
+        for (const _ of source) return true;
+        return false;
+    }
+
+    all(predicate) {
+        for (const item of this)
+            if (!predicate(item))
+                return false;
+        return true;
+    }
+
+    count(predicate) {
+        let count = 0;
+        const source = predicate ? this.where(predicate) : this;
+        for (const _ of source) count++;
+        return count;
+    }
+}
+
+Array.prototype.asEnumerable = function () {
+    const arr = this;
+    return new Enumerable(function* () {
+        for (const item of arr)
+            yield item;
+    });
+}

OnlyPrompt.Frontend/js/login.js

@@ -0,0 +1,21 @@
+import {  sendFormAsync } from "./shared.js";
+
+function togglePassword() {
+    const passwordInput = document.getElementById('password');
+    const newInputType = passwordInput.type === 'password' ? 'text' : 'password';
+    passwordInput.type = newInputType;
+}
+
+async function submitLoginForm(){
+    const form = document.getElementById('loginForm');
+    await sendFormAsync(form);
+}
+
+
+const togglePasswordButton = document.getElementById('togglePassword');
+togglePasswordButton.addEventListener('click', togglePassword);
+const loginForm = document.getElementById('loginForm');
+loginForm.addEventListener('submit', async (event) => {
+    event.preventDefault(); // Prevent the default form submission
+    await submitLoginForm();
+});

OnlyPrompt.Frontend/js/shared.js

@@ -0,0 +1,160 @@
+import './linq.js'
+import { Template } from './template.js';
+
+export function formToObject(form) {
+    const data = new FormData(form);
+    const object = {};
+    data.forEach((value, key) => {
+        setNestedValue(object, key, value);
+    });
+    return object;
+}
+
+function setNestedValue(obj, path, value) {
+    path.split('.').asEnumerable()
+        .isLast()
+        .forEach((key, isLast) => {
+            if (isLast) {
+                obj[key] = value;
+            }
+            else {
+                if (!obj[key]) {
+                    obj[key] = {};
+                }
+
+                obj = obj[key];
+            }
+        });
+}
+
+export async function sendFormAsync(form, url, method) {
+    url = url || form.action;
+    method = method || form.method || 'post';
+    const data = formToObject(form);
+    const response = await sendJsonAsync(url, data, method);
+    if (response.ok && response.redirected) {
+        window.location.href = response.url;
+        return null;
+    }
+
+    const responseText = await response.text();
+    if (response.ok == false && handleValidationError(response, responseText, form)) {
+        return null;
+    }
+
+    if (response.ok == false) {
+        handleGenericFormError(response, responseText, form);
+        return null;
+    } else {
+        return responseText.length == 0 ? null : JSON.parse(responseText);
+    }
+}
+
+export async function sendJsonAsync(url, data, method = 'post') {
+    const response = await fetch(url, {
+        method: method.toUpperCase(),
+        headers: {
+            'Content-Type': 'application/json'
+        },
+        body: JSON.stringify(data)
+    });
+
+    return response;
+}
+
+export async function postAndRenderAsync(url, data, template, targetElement) {
+    const response = await sendJsonAsync(url, data);
+    if (response.ok) {
+        const responseText = await response.text();
+        targetElement.innerHTML = template.render(responseText.length == 0 ? undefined : JSON.parse(responseText));
+    }
+}
+
+export async function postFormAndRenderAsync(url, form, template, targetElement) {
+    const object = formToObject(form);
+    const data = await postFormAsync(url, object, template, targetElement);
+    if (data) {
+        targetElement.innerHTML = template.render(data);
+    }
+}
+
+const genericFormErrorTemplate = new Template(`
+    <div class="form-error">
+        An error occurred while submitting the form. Please try again later.
+        {{ $this }}
+    </div>
+`);
+
+function handleGenericFormError(response, responseText, form) {
+    if (!response.ok) {
+        const html = genericFormErrorTemplate.render(responseText);
+        form.insertAdjacentHTML('beforeend', html);
+    }
+}
+
+const validationErrorTemplate = new Template(`
+    <div class="form-error">
+        <ul>
+        @for(error of $this) {
+            <li class="error">{{error}}</li>
+        }
+        </ul>
+    </div>
+`);
+
+const unknownInputErrorTemplate = new Template(`
+    <div class="form-error">
+        <p>An error occurred with the following fields:</p>
+        @for(field, errors of Object.entries($this)) {
+            <ul>
+            @for(error of errors) {
+                <li class="error">{{field}}: {{error}}</li>
+            }
+            </ul>
+        }
+    </div>
+`);
+
+function toCamelCase(str) {
+    str = str.replace(/([-_][a-z])/gi, (match) => {
+        return match.toUpperCase()
+            .replace('-', '')
+            .replace('_', '');
+    });
+
+    str = str[0].toLowerCase() + str.substring(1);
+    return str;
+}
+
+
+function handleValidationError(response, responseText, form) {
+    if (response.status !== 400) return false;
+    const responseObject = JSON.parse(responseText);
+    const unknownInputErrors = {};
+    if (responseObject.type === 'https://tools.ietf.org/html/rfc9110#section-15.5.1' && responseObject.errors) {
+        for (const [field, messages] of Object.entries(responseObject.errors)) {
+            const input = form.querySelector(`[name="${toCamelCase(field)}"]`);
+            if (input) {
+                const parent = input.parentElement;
+                const errorHtml = validationErrorTemplate.render(messages);
+                let errorContainer = parent.querySelector('.form-error'); // Check if an error container already exists
+                if (errorContainer) {
+                    errorContainer.outerHTML = errorHtml; // Replace existing error container
+                } else {
+                    parent.insertAdjacentHTML('beforeend', errorHtml);
+                }
+            } else {
+                unknownInputErrors[field] = messages;
+            }
+        }
+
+        if (Object.keys(unknownInputErrors).length > 0) {
+            const html = unknownInputErrorTemplate.render(unknownInputErrors);
+            form.insertAdjacentHTML('beforeend', html);
+        }
+
+        return true;
+    }
+
+    return false;
+}