Add delete-all-data endpoint to auth API for user data removal

src/routes/authRoutes.js

@@ -14,4 +14,7 @@ router.post('/refresh', authController.refresh);
 // POST /api/auth/logout
 router.post('/logout', authController.logout);
 
+// POST /api/auth/delete-all-data
+router.post('/delete-all-data', authController.deleteAllData);
+
 module.exports = router;