Step 2 of memory system overhaul: automated scheduling.
- New consolidation_scheduler.py: run_nightly_consolidation() function that
checks Cat health, triggers consolidation via WebSocket, and tracks
run history with success/failure stats
- bot.py on_ready: register APScheduler cron job (hour=4, minute=0)
alongside the existing daily DM analysis job
- routes/memory.py: expose consolidation status (last_run, last_result,
last_error, is_running, total_runs, successful_runs) in the
/memory/status API response
- Web UI: show consolidation schedule info (last run time, success/fail,
run counts) below the manual consolidate button, with 'running now'
indicator when active
The 'sleep consolidation' metaphor is now actually automated instead of
being manual-only.
