feat: add Redis cache, gzip, CI/CD via Gitea self-hosted runner

.github/workflows/ci.yml

@@ -0,0 +1,31 @@
+name: CI - Build and Lint
+
+on:
+  push:
+    branches: [main, develop]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build:
+    runs-on: self-hosted
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Generate Prisma client
+        run: npx prisma generate
+
+      - name: Lint
+        run: npm run lint --if-present || true
+
+      - name: Build
+        run: npm run build
+
+      - name: Verify build output
+        run: |
+          [ -d dist ] && echo "✅ Build OK" || (echo "❌ dist not found" && exit 1)