The user reported test_context_sim_live failure after applying Phase 6 final
commit to their main repo. Root cause: Phase 6 Group 6.7's queue_fallback
migration put self._process_event_queue() inside _run_pending_tasks_once_result
AFTER the try/except block, making it unreachable code. As a result, the
event_queue was never consumed, breaking the AI loop.
Fix a4b966c3 (already committed): moved self._process_event_queue() back
to its original location in _run_event_loop, immediately after
self.submit_io(queue_fallback).
This doc update explains the root cause, the fix, and the lesson learned.
ed
1f408b9342