feat(cfdi): add autocomplete for emisor and receptor filters

- Add /cfdi/emisores and /cfdi/receptores API endpoints
- Search by RFC or nombre with ILIKE
- Show suggestions dropdown while typing (min 2 chars)
- Click suggestion to select and populate filter input
- Show loading state while searching

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

apps/api/src/routes/cfdi.routes.ts

@@ -10,6 +10,8 @@ router.use(tenantMiddleware);
 
 router.get('/', cfdiController.getCfdis);
 router.get('/resumen', cfdiController.getResumen);
+router.get('/emisores', cfdiController.getEmisores);
+router.get('/receptores', cfdiController.getReceptores);
 router.get('/:id', cfdiController.getCfdiById);
 router.get('/:id/xml', cfdiController.getXml);
 router.post('/', cfdiController.createCfdi);