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.

.github/workflows/docs.yml

@@ -1,46 +1,46 @@
-name: Docs
-
-on:
-  push:
-    branches: [master]
-    paths:
-      - 'docs/**'
-      - 'src/**'
-
-permissions:
-  contents: write
-
-jobs:
-  build-deploy:
-    name: Build & Deploy Docs
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Setup .NET 10
-        uses: actions/setup-dotnet@v4
-        with:
-          dotnet-version: '10.0.x'
-
-      - name: Cache NuGet packages
-        uses: actions/cache@v4
-        with:
-          path: ~/.nuget/packages
-          key: nuget-${{ runner.os }}-${{ hashFiles('src/**/*.csproj') }}
-          restore-keys: nuget-${{ runner.os }}-
-
-      - name: Restore .NET tools
-        run: dotnet tool restore
-
-      - name: Build solution
-        run: dotnet build src/EchoHub.slnx --configuration Release
-
-      - name: Generate documentation
-        run: dotnet docfx docs/docfx.json
-
-      - name: Deploy to web branch
-        uses: peaceiris/actions-gh-pages@v4
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-          publish_dir: ./docs/_site
-          publish_branch: web
+name: Docs
+
+on:
+  push:
+    branches: [master]
+    paths:
+      - 'docs/**'
+      - 'src/**'
+
+permissions:
+  contents: write
+
+jobs:
+  build-deploy:
+    name: Build & Deploy Docs
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup .NET 10
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '10.0.x'
+
+      - name: Cache NuGet packages
+        uses: actions/cache@v4
+        with:
+          path: ~/.nuget/packages
+          key: nuget-${{ runner.os }}-${{ hashFiles('src/**/*.csproj') }}
+          restore-keys: nuget-${{ runner.os }}-
+
+      - name: Restore .NET tools
+        run: dotnet tool restore
+
+      - name: Build solution
+        run: dotnet build src/EchoHub.slnx --configuration Release
+
+      - name: Generate documentation
+        run: dotnet docfx docs/docfx.json
+
+      - name: Deploy to web branch
+        uses: peaceiris/actions-gh-pages@v4
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./docs/_site
+          publish_branch: web