Fix CI: build frontend before Rust compile for rust-embed

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: haasonsaas

.github/workflows/ci.yml

@@ -14,6 +14,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+      - name: Build frontend
+        run: cd web && npm ci && npm run build
       - uses: dtolnay/rust-toolchain@stable
         with:
           components: rustfmt, clippy
@@ -30,6 +35,11 @@ jobs:
         os: [ubuntu-latest, macos-latest, windows-latest]
     steps:
       - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+      - name: Build frontend
+        run: cd web && npm ci && npm run build
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
       - name: Test