ci(frontend): run npm run check to gate generated-type drift on PRs

`npm run lint` does not type-check, so a hand-edited or stale api.ts whose
required fields are missing from Document/Person mocks would pass CI. Adds a
svelte-check/tsc step after Lint (svelte-kit sync + paraglide compile already
ran), making the frontend type-check a blocking gate on every pull_request.

Note for the repo owner: enforcing this as a required status check is a Gitea
branch-protection setting, not code — please mark the CI job required on the
protected branches.

Refs #671

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

.gitea/workflows/ci.yml

@@ -45,6 +45,13 @@ jobs:
         run: npm run lint
         working-directory: frontend
 
+      # svelte-check / tsc — catches generated-type drift (e.g. a hand-edited
+      # api.ts whose required fields are missing from Document/Person mocks).
+      # `npm run lint` alone does not type-check. See PR #673 / #671.
+      - name: Type check
+        run: npm run check
+        working-directory: frontend
+
       - name: Assert no banned vi.mock patterns
         shell: bash
         run: |