log zerogpu endpoint tracebacks

zerogpu_tinker_proxy.py

@@ -13,6 +13,7 @@ bodies; dataset/reward/tokenization logic remains local.
 from __future__ import annotations
 
 import os
+import traceback
 from typing import Any
 
 from fastapi import FastAPI, Header, HTTPException, Request
@@ -74,6 +75,10 @@ def _call_space(route_name: str, key: str, body: dict[str, Any] | None = None) -
             return _client().predict(key, api_name=api_name)
         return _client().predict(key, body, api_name=api_name)
     except Exception as exc:  # noqa: BLE001
+        print(
+            f"ZeroGPU Space call failed for {route_name}: {exc!r}\n{traceback.format_exc()}",
+            flush=True,
+        )
         raise HTTPException(502, f"ZeroGPU Space call failed: {exc}")
 
 

zerogpu_tinker_service.py

@@ -19,6 +19,7 @@ import os
 import secrets
 import sys
 import time
+import traceback
 import uuid
 from contextlib import contextmanager
 from dataclasses import dataclass
@@ -294,6 +295,8 @@ def _logged_endpoint(endpoint: str, fn):
                 endpoint=endpoint,
                 status="error",
                 error_type=type(exc).__name__,
+                error=repr(exc),
+                traceback=traceback.format_exc(),
                 duration_ms=round((time.monotonic() - started) * 1000, 2),
                 **context,
             )