Add README, .gitignore, CI workflow, and syntax checks

Co-Authored-By: Claude Opus 4.7 <[email protected]>

.gitea/workflows/ci.yml

@@ -0,0 +1,25 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+
+      - run: npm ci
+
+      - name: Syntax and structure checks
+        run: npm test
+
+      - name: Build
+        run: npm run build