CI: Add Knip to understand dependency usage

.github/knip.json

@@ -0,0 +1,11 @@
+{
+  "$schema": "https://unpkg.com/knip@5/schema.json",
+  "entry": ["src/module.{js,ts,tsx}"],
+  "project": ["src/**/*", "tests/**/*", ".config/**/*"],
+  "eslint": {
+    "config": [".config/.eslintrc", "./.eslintrc"]
+  },
+  "webpack": {
+    "config": [".config/webpack/webpack.config.ts"]
+  }
+}

.github/workflows/ci.yml

@@ -37,6 +37,7 @@ jobs:
         run: |
           mkdir ./packed-artifacts
           npm pack --workspace="@grafana/create-plugin" --workspace="@grafana/sign-plugin" --pack-destination="./packed-artifacts"
+          cp ./.github/knip.json ./packed-artifacts
       - name: Upload artifacts for testing
         uses: actions/upload-artifact@v4
         with:
@@ -199,6 +200,13 @@ jobs:
         run: sign-plugin --rootUrls http://www.example.com --signatureType private
         working-directory: ./${{ matrix.workingDir }}
 
+      - name: Frontend Knip Report
+        if: ${{ github.actor != 'dependabot[bot]' }}
+        run: |
+          cat .config/webpack/webpack.config.ts
+          npx -y knip --config ../packed-artifacts/knip.json --reporter markdown --no-exit-code
+        working-directory: ./${{ matrix.workingDir }}
+
   release:
     runs-on: ubuntu-latest
     needs: [test, generate-plugins]