Refactor and update various components of EchoHub.Server

- Updated launchSettings.json for consistency.
- Refactored FileValidationHelper to improve image validation logic.
- Enhanced ServerDirectoryService for better connection handling and user count updates.
- Improved DatabaseSetup for legacy database handling and seeding default channels.
- Refined FirstRunSetup to ensure JWT secret generation.
- Removed appsettings.Development.json as it is no longer needed.
- Updated EchoHub.Tests project file for consistency.
- Added unit tests for FileValidationHelper and PresenceTracker with improved assertions.
- Updated ValidationConstantsTests to ensure regex validations are correct.
- Cleaned up solution file formatting for better readability.

docs/articles/architecture.md

@@ -1,41 +1,41 @@
-# Architecture
-
-## Overview
-
-EchoHub follows a decentralized model where each server is fully independent. There is no central authority or account federation. Users create one account per server.
-
-## Components
-
-### EchoHub.Core
-
-Shared library containing:
-
-- **Models**: `User`, `Channel`, `Message`, `RefreshToken`
-- **DTOs**: Record types for API requests/responses
-- **Contracts**: `IEchoHubClient` -- the strongly-typed SignalR client interface
-- **Constants**: `ValidationConstants` (shared regex patterns), `HubConstants`
-
-### EchoHub.Server
-
-ASP.NET Core web application:
-
-- **Controllers**: REST API endpoints for auth, channels, users, files, server info
-- **Hubs**: SignalR `ChatHub` for real-time messaging
-- **Auth**: JWT token service (15-min access tokens, 30-day refresh tokens)
-- **Data**: EF Core with SQLite
-- **Services**: Presence tracking, file storage, image-to-ASCII conversion
-
-### EchoHub.Client
-
-Terminal.Gui v2 TUI application:
-
-- **UI**: Main window, dialogs, chat renderer with ANSI color support
-- **Services**: API client with automatic token refresh, SignalR connection wrapper
-- **Themes**: 6 built-in color themes
-- **Config**: Client configuration management
-
-## Communication
-
-- REST API for authentication, profile management, channel CRUD, file uploads
-- SignalR WebSocket for real-time messaging and presence updates
-- JWT tokens passed via query string for SignalR authentication
+# Architecture
+
+## Overview
+
+EchoHub follows a decentralized model where each server is fully independent. There is no central authority or account federation. Users create one account per server.
+
+## Components
+
+### EchoHub.Core
+
+Shared library containing:
+
+- **Models**: `User`, `Channel`, `Message`, `RefreshToken`
+- **DTOs**: Record types for API requests/responses
+- **Contracts**: `IEchoHubClient` -- the strongly-typed SignalR client interface
+- **Constants**: `ValidationConstants` (shared regex patterns), `HubConstants`
+
+### EchoHub.Server
+
+ASP.NET Core web application:
+
+- **Controllers**: REST API endpoints for auth, channels, users, files, server info
+- **Hubs**: SignalR `ChatHub` for real-time messaging
+- **Auth**: JWT token service (15-min access tokens, 30-day refresh tokens)
+- **Data**: EF Core with SQLite
+- **Services**: Presence tracking, file storage, image-to-ASCII conversion
+
+### EchoHub.Client
+
+Terminal.Gui v2 TUI application:
+
+- **UI**: Main window, dialogs, chat renderer with ANSI color support
+- **Services**: API client with automatic token refresh, SignalR connection wrapper
+- **Themes**: 6 built-in color themes
+- **Config**: Client configuration management
+
+## Communication
+
+- REST API for authentication, profile management, channel CRUD, file uploads
+- SignalR WebSocket for real-time messaging and presence updates
+- JWT tokens passed via query string for SignalR authentication

docs/articles/getting-started.md

@@ -1,31 +1,31 @@
-# Getting Started
-
-## Prerequisites
-
-- [.NET 10 SDK](https://dotnet.microsoft.com/download)
-
-## Run the Server
-
-```bash
-dotnet run --project src/EchoHub.Server
-```
-
-On first run, the server automatically:
-
-1. Creates `appsettings.json` from the example config
-2. Generates a secure JWT secret
-3. Creates the SQLite database with a `#general` channel
-
-## Run the Client
-
-```bash
-dotnet run --project src/EchoHub.Client
-```
-
-Connect to a server, register an account, and start chatting.
-
-## Build from Source
-
-```bash
-dotnet build src/EchoHub.slnx
-```
+# Getting Started
+
+## Prerequisites
+
+- [.NET 10 SDK](https://dotnet.microsoft.com/download)
+
+## Run the Server
+
+```bash
+dotnet run --project src/EchoHub.Server
+```
+
+On first run, the server automatically:
+
+1. Creates `appsettings.json` from the example config
+2. Generates a secure JWT secret
+3. Creates the SQLite database with a `#general` channel
+
+## Run the Client
+
+```bash
+dotnet run --project src/EchoHub.Client
+```
+
+Connect to a server, register an account, and start chatting.
+
+## Build from Source
+
+```bash
+dotnet build src/EchoHub.slnx
+```

docs/articles/toc.yml

@@ -1,4 +1,4 @@
-- name: Getting Started
-  href: getting-started.md
-- name: Architecture
-  href: architecture.md
+- name: Getting Started
+  href: getting-started.md
+- name: Architecture
+  href: architecture.md