wip: add checks for backend too

.github/workflows/lockfile.yml

@@ -9,10 +9,17 @@ jobs:
     steps:
       - name: Check out a copy of the repo
         uses: actions/checkout@v4
-      - name: Check package-lock.json version has not been changed
+      - name: Check app package-lock.json version has not been changed
         uses: mansona/npm-lockfile-version@v1
         with:
           version: 3
+      - name: Move to backend directory
+        run: cd ./src/backend
+      - name: Check backend package-lock.json version has not been changed
+        uses: mansona/npm-lockfile-version@v1
+        with:
+          version: 3
+
   lockfile_changes:
     name: Lockfile changes check
     runs-on: ubuntu-latest
@@ -25,10 +32,16 @@ jobs:
         with:
           app-id: ${{ vars.LOCKFILE_BOT_APP_ID }}
           private-key: ${{ secrets.LOCKFILE_BOT_PRIVATE_KEY }}
-      - name: NPM Lockfile Changes
+      - name: App lockfile Changes
         # The original doesn't support v3 lockfiles so we use a fork that adds support for them
         # The fork doesn't update comments by an app token, so we use our own fork
         uses: digidem/npm-lockfile-changes@614dfc33742374cb40bec2878e5b690580d11ede
         with:
           token: ${{ steps.app-token.outputs.token }}
           updateComment: true
+      - name: Backend lockfile Changes
+        uses: digidem/npm-lockfile-changes@614dfc33742374cb40bec2878e5b690580d11ede
+        with:
+          token: ${{ steps.app-token.outputs.token }}
+          updateComment: true
+          path: './src/backend/package-lock.json'