Add lore cron {install,uninstall,status} to manage a crontab entry that
runs lore sync on a configurable interval. Supports both human and robot
output modes.
Core implementation (src/core/cron.rs):
- install_cron: appends a tagged crontab entry, detects existing entries
- uninstall_cron: removes the tagged entry
- cron_status: reads crontab + checks last-sync time from the database
- Unix-only (#[cfg(unix)]) — compiles out on Windows
CLI wiring:
- CronAction enum and CronArgs in cli/mod.rs with after_help examples
- Robot JSON envelope with RobotMeta timing for all 3 sub-actions
- Dispatch in main.rs
Also in this commit:
- Add after_help example blocks to Status, Auth, Doctor, Init, Migrate,
Health commands for better discoverability
- Add LORE_ICONS env var documentation to CLI help text
- Simplify notes format dispatch in main.rs (removed csv/jsonl paths)
- Update commands/mod.rs re-exports for cron + notes cleanup
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
