fix: add self_reflect tool for past behavior review (#417)

Co-authored-by: Kimi Agent <kimi@timmy.local>
Co-committed-by: Kimi Agent <kimi@timmy.local>

tests/dashboard/test_world_api.py

@@ -1,5 +1,6 @@
 """Tests for GET /api/world/state endpoint and /api/world/ws relay."""
 
+import asyncio
 import json
 import logging
 import time
@@ -7,8 +8,6 @@ from unittest.mock import AsyncMock, MagicMock, patch
 
 import pytest
 
-import asyncio
-
 from dashboard.routes.world import (
     _GROUND_TTL,
     _REMIND_AFTER,
@@ -393,7 +392,6 @@ async def test_conversation_buffer_caps_at_max():
 
 def test_log_bark_failure_logs_exception(caplog):
     """_log_bark_failure logs errors from failed bark tasks."""
-    import asyncio
 
     loop = asyncio.new_event_loop()
 
@@ -410,7 +408,6 @@ def test_log_bark_failure_logs_exception(caplog):
 
 def test_log_bark_failure_ignores_cancelled():
     """_log_bark_failure silently ignores cancelled tasks."""
-    import asyncio
 
     task = MagicMock(spec=asyncio.Task)
     task.cancelled.return_value = True