fix: error state resettable via mic click, debug logging, pipeline traceback

api/pipeline.py

@@ -1,7 +1,11 @@
+import logging
 import os
 import tempfile
+import traceback
 
 from api.state import state, Status
+
+logger = logging.getLogger(__name__)
 from config import load as load_config
 from transcription import engine as transcription_engine
 from llm import OllamaClient
@@ -59,6 +63,8 @@ async def run_pipeline():
         await state.set_status(Status.IDLE)
 
     except Exception as e:
+        tb = traceback.format_exc()
+        logger.error("Pipeline error:\n%s", tb)
         state.last_error = str(e)
         await state.set_status(Status.ERROR)
         await broadcast({"event": "error", "message": str(e)})