feat: Add Gitea Actions CI workflow

.gitea/workflows/ci.yml

@@ -0,0 +1,62 @@
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - uses: actions/checkout@v4
+      
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          cache-dependency-path: frontend/package-lock.json
+      
+      - name: Install dependencies
+        run: |
+          cd frontend
+          npm ci
+      
+      - name: Type check
+        run: |
+          cd frontend
+          npm run type-check || npm run build -- --noEmit
+      
+      - name: Run linter
+        run: |
+          cd frontend
+          npm run lint || true
+
+  build:
+    runs-on: ubuntu-latest
+    needs: test
+    
+    steps:
+      - uses: actions/checkout@v4
+      
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          cache-dependency-path: frontend/package-lock.json
+      
+      - name: Build
+        run: |
+          cd frontend
+          npm ci
+          npm run build
+      
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: dist
+          path: frontend/dist