feat: configure Vercel to wait for CI before deploying

- Update GitHub Actions CI workflow to use Node 22
- Add architecture and deadcode checks to CI pipeline
- Create Vercel deployment guard script
- Add comprehensive deployment documentation
- Update README with CI badge and quality gates info
- Configure vercel.json for deployment settings

Vercel will now only deploy to production after all CI checks pass:
- Linting & formatting
- Type checking
- Tests
- Build verification
- Architecture validation
- Dead code detection

See DEPLOYMENT.md for configuration instructions.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
 
       - uses: actions/setup-node@v4
         with:
-          node-version: 21
+          node-version: 22
           cache: 'pnpm'
 
       - name: Install dependencies
@@ -45,7 +45,7 @@ jobs:
 
       - uses: actions/setup-node@v4
         with:
-          node-version: 21
+          node-version: 22
           cache: 'pnpm'
 
       - name: Install dependencies
@@ -65,7 +65,7 @@ jobs:
 
       - uses: actions/setup-node@v4
         with:
-          node-version: 21
+          node-version: 22
           cache: 'pnpm'
 
       - name: Install dependencies
@@ -85,7 +85,7 @@ jobs:
 
       - uses: actions/setup-node@v4
         with:
-          node-version: 21
+          node-version: 22
           cache: 'pnpm'
 
       - name: Install dependencies
@@ -93,3 +93,43 @@ jobs:
 
       - name: Build
         run: pnpm build
+
+  architecture:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: pnpm/action-setup@v4
+        with:
+          version: 10.14.0
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: 'pnpm'
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Check architecture
+        run: pnpm check-architecture
+
+  deadcode:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: pnpm/action-setup@v4
+        with:
+          version: 10.14.0
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: 'pnpm'
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Find dead code
+        run: pnpm find-deadcode