chengyongru fe2af64e04 refactor(heartbeat): migrate heartbeat service to cron-based auto-registration ...

Remove standalone nanobot/heartbeat/ service and replace it with an
auto-registered system cron job on gateway startup. Key behaviors preserved:

- HeartbeatConfig (enabled, interval_s, keep_recent_messages) remains in
  GatewayConfig for backward compatibility.
- On startup, if enabled, a system cron job "heartbeat" is registered with
  schedule derived from interval_s.
- HEARTBEAT.md is checked on each tick; empty/template-identical files skip
  to avoid wasting LLM calls.
- Post-run evaluate_response and session history truncation
  (keep_recent_messages) are retained.
- Delivery target selection, deliverable filtering, and preamble guidance
  are preserved.

Files removed:
- nanobot/heartbeat/__init__.py
- nanobot/heartbeat/service.py
- tests/heartbeat/*
- tests/agent/test_heartbeat_service.py

Templates and docs updated to reflect cron-based usage.

2026-05-28 20:20:28 +08:00

..

design.md

docs: refine AI contributor guidance

2026-05-09 14:00:32 +08:00

gotchas.md

refactor(heartbeat): migrate heartbeat service to cron-based auto-registration

2026-05-28 20:20:28 +08:00

security.md

docs: add CLAUDE.md and .agent/ guides for AI contributors

2026-05-09 14:00:32 +08:00