fix: update import paths in debug scripts after reorganization

- Fix relative imports in experiments/ scripts (../ → ../../)
- Clean up tsconfig.json exclude list (remove non-existent paths)
- All debug scripts now work from their new location

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

experiments/magnit-detail-endpoints/test-detail-endpoint.ts

@@ -1,6 +1,6 @@
 import 'dotenv/config';
-import { MagnitApiScraper } from '../scrapers/api/magnit/MagnitApiScraper.js';
-import { Logger } from '../utils/logger.js';
+import { MagnitApiScraper } from '../../scrapers/api/magnit/MagnitApiScraper.js';
+import { Logger } from '../../utils/logger.js';
 
 async function main() {
   const storeCode = process.env.MAGNIT_STORE_CODE || '992301';