fix: make CWD API typecheck clean and enforce CI

.github/workflows/cwd-api.yml

@@ -0,0 +1,56 @@
+name: CWD API CI
+
+on:
+  pull_request:
+    paths:
+      - 'cwd-api/**'
+      - '.github/workflows/cwd-api.yml'
+  push:
+    branches:
+      - main
+    paths:
+      - 'cwd-api/**'
+      - '.github/workflows/cwd-api.yml'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: cwd-api-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  verify:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: cwd-api
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 11.9.0
+          run_install: false
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '22'
+          cache: pnpm
+          cache-dependency-path: cwd-api/pnpm-lock.yaml
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile --ignore-scripts
+
+      - name: Prepare Wrangler config
+        run: cp wrangler.jsonc.example wrangler.jsonc
+
+      - name: Typecheck
+        run: pnpm typecheck
+
+      - name: Test
+        run: pnpm test --run

cwd-api/package.json

@@ -6,6 +6,7 @@
 		"dev": "wrangler dev",
 		"start": "wrangler dev",
 		"test": "vitest",
+		"typecheck": "tsc --noEmit",
 		"cf-typegen": "wrangler types"
 	},
 	"devDependencies": {