Steve Yegge 3f4f7cc185 Implement bd daemon command with production-ready improvements ...

- Add bd daemon command for background git sync (bd-273)
- Implement PID file management with atomic creation (O_EXCL)
- Add session detachment (Setsid) to survive terminal closure
- Implement graceful shutdown with SIGTERM/SIGINT/SIGHUP handling
- Add context cancellation and per-sync timeouts (2min)
- Use secure file permissions (0600 for PID/log, 0700 for .beads)
- Add startup confirmation before reporting success
- Implement interval validation and comprehensive error handling
- Add full test coverage for daemon lifecycle
- Update README.md with daemon documentation

All oracle review recommendations implemented.

Resolves: bd-273
Amp-Thread-ID: https://ampcode.com/threads/T-117c4016-b25d-462a-aa75-6060df4b2892
Co-authored-by: Amp <amp@ampcode.com>

2025-10-16 13:10:19 -07:00

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