v2.2.1: fix NameError _ts crash + catch stream disconnect errors

- Fix NameError: _ts undefined in crof debug logging (caused ALL requests to crash)
- Catch ConnectionResetError/BrokenPipeError during streaming (graceful client disconnect)
- Tested: kimi-k2.6 + mimo-v2.5-pro streaming through proxy, both status=completed

src/translate-proxy.py

@@ -918,12 +918,11 @@ class Handler(http.server.BaseHTTPRequestHandler):
         _crof_debug_path = os.path.join(_LOG_DIR, "crof-upstream.jsonl")
         with open(_crof_debug_path, "a") as _cdf:
             _cdf.write(json.dumps({
-                "ts": _ts, "model": model, "max_tokens": chat_body.get("max_tokens"),
-                "reasoning_enabled": REASONING_ENABLED, "reasoning_effort": chat_body.get("reasoning_effort"),
+                "model": model, "max_tokens": chat_body.get("max_tokens"),
+                "reasoning_effort": chat_body.get("reasoning_effort"),
                 "enable_thinking": chat_body.get("enable_thinking", "NOT_SENT"),
                 "n_messages": len(chat_body.get("messages", [])),
                 "has_tools": bool(chat_body.get("tools")),
-                "messages_summary": [{"role": m.get("role"), "tc": len(m.get("tool_calls", [])), "content_len": len(str(m.get("content", "")))[:6], "tool_call_id": m.get("tool_call_id")} for m in chat_body.get("messages", [])],
             }) + "\n")
         req = urllib.request.Request(
             target,
@@ -1098,6 +1097,7 @@ class Handler(http.server.BaseHTTPRequestHandler):
             last_resp_id = None
             last_output = None
             last_status = None
+            try:
                 for event in stream_fn(upstream):
                     self.wfile.write(event.encode("utf-8"))
                     self.wfile.flush()
@@ -1110,7 +1110,9 @@ class Handler(http.server.BaseHTTPRequestHandler):
                                     last_output = d.get("response", {}).get("output", [])
                                     last_status = d.get("response", {}).get("status")
                             except: pass
-            _log_resp(last_resp_id, last_status, last_output)
+            except (ConnectionResetError, BrokenPipeError, ConnectionAbortedError):
+                print("[translate-proxy] client disconnected during stream", file=sys.stderr)
+            _log_resp(last_resp_id, last_status or "client_disconnect", last_output)
             if last_resp_id and input_data is not None:
                 store_response(last_resp_id, input_data, last_output)
         else: