feat: project cleanup - MIT license, tests, ESLint, health endpoint, PR checks

.github/workflows/pr-check.yml

@@ -0,0 +1,51 @@
+# Copyright (c) 2026 Stefan Koelle (https://stefankoelle.de)
+# Licensed under the MIT License. See LICENSE file in project root for details.
+name: PR Check
+
+on:
+  pull_request:
+    branches: [main]
+
+jobs:
+  backend:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '10.0.x'
+
+      - name: Restore
+        run: dotnet restore
+
+      - name: Build
+        run: dotnet build --no-restore
+
+      - name: Test
+        run: dotnet test --no-build --verbosity normal
+
+  frontend:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '22'
+          cache: 'npm'
+          cache-dependency-path: client/package-lock.json
+
+      - name: Install dependencies
+        run: npm ci
+        working-directory: client
+
+      - name: Lint
+        run: npm run lint
+        working-directory: client
+
+      - name: Build
+        run: npm run build
+        working-directory: client