fix: Fix TypeScript errors for CI

- Add export {} to cli.ts and discover-and-import-store.ts to treat as modules
- Remove scrapeStore reference in crawler-jobs.ts (legacy scraper removed)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/src/scripts/discover-and-import-store.ts

@@ -254,3 +254,5 @@ Next steps to complete import:
 }
 
 main().catch(console.error);
+
+export {};