setup typechecking in CI

.github/workflows/ci.yml

@@ -32,7 +32,7 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: 20
-          cache: 'npm'
+          cache: "npm"
           cache-dependency-path: orchestrator/package-lock.json
       - name: Install dependencies
         run: npm ci
@@ -53,15 +53,23 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: 20
-          cache: 'npm'
+          cache: "npm"
           cache-dependency-path: ${{ matrix.project }}/package-lock.json
 
-      - name: Build ${{ matrix.project }}
+      - name: Install dependencies
         run: |
           if [[ "${{ matrix.project }}" == extractors/* ]]; then
             npm ci --ignore-scripts
           else
             npm ci
           fi
-          npm run build
+        working-directory: ${{ matrix.project }}
+
+      - name: Type Check (orchestrator only)
+        if: matrix.project == 'orchestrator'
+        run: npm run check:types
+        working-directory: ${{ matrix.project }}
+
+      - name: Build ${{ matrix.project }}
+        run: npm run build
         working-directory: ${{ matrix.project }}

orchestrator/package.json

@@ -11,6 +11,7 @@
     "ci": "biome ci",
     "check": "biome check",
     "check:fix": "biome check --write",
+    "check:types": "tsc --noEmit",
     "format": "biome format",
     "format:fix": "biome format --write",
     "build": "npm run build:client && npm run build:server",