fixing regresssions

src/ai_client.py

@@ -134,7 +134,9 @@ def _get_combined_system_prompt() -> str:
   return f"{_SYSTEM_PROMPT}\n\n[USER SYSTEM PROMPT]\n{_custom_system_prompt}"
  return _SYSTEM_PROMPT
 
-_comms_log: list[dict[str, Any]] = []
+from collections import deque
+
+_comms_log: deque[dict[str, Any]] = deque(maxlen=1000)
 
 COMMS_CLAMP_CHARS: int = 300
 
@@ -147,6 +149,7 @@ def _append_comms(direction: str, kind: str, payload: dict[str, Any]) -> None:
   "model":       _model,
   "payload":     payload,
   "source_tier": get_current_tier(),
+  "local_ts":    time.time(),
  }
  _comms_log.append(entry)
  if comms_log_callback is not None: