fix: regenerate package-lock.json — npm ci failing in CI

Lock file was out of sync after multiple dependabot merges.
npm ci in GitHub Actions (Node 20) was failing with missing
dependencies. Regenerated with npm install and verified with
npm ci locally.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: abhizipstack

.github/workflows/frontend-lint.yaml

@@ -26,6 +26,9 @@ jobs:
           cache: "npm"
           cache-dependency-path: frontend/package-lock.json
 
+      - name: Update npm to match lock file
+        run: npm install -g npm@10.9.2
+
       - name: Install dependencies
         working-directory: ./frontend
         run: npm ci