- Add nanobot/utils/evaluator.py: lightweight LLM tool-call to decide notify/silent after background task execution
- Remove magic token injection from heartbeat and cron prompts
- Clean session history (no more <SILENT_OK> pollution)
- Add tests for evaluator and updated heartbeat three-phase flow
HeartbeatService was refactored from free-text HEARTBEAT_OK token
matching to a structured two-phase design (LLM tool call for
skip/run decision, then execution). The tests still used the old
on_heartbeat callback constructor and HEARTBEAT_OK_TOKEN import.
- Remove obsolete test_heartbeat_ok_detection test
- Update test_start_is_idempotent to use new provider+model constructor
- Add tests for _decide() skip path, trigger_now() run/skip paths
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
