Feature: Persistent cron jobs via background daemon

Feature Request

CronCreate is great — scheduling recurring prompts within a session is a powerful workflow. But jobs die when the session exits, which limits the feature to long-running sessions only.

Proposed: Persistent cron via a background daemon

A lightweight daemon service that:

1. Persists jobs to disk (SQLite, JSON, etc.) so they survive session exits and reboots
2. Runs independently of any active Claude Code session
3. Spawns headless Claude Code sessions when a job fires (similar to claude -p "prompt")
4. Integrates with existing CronCreate/CronList/CronDelete — same UX, just persistent

Real-world use case: Automated codebase garbage collection

I set up a daily cron job to pay down tech debt automatically:

/loop once per day run /simplify pay down tech debt over the last two
implemented specs. do it as an intermediary spec implemented with the
SPIR protocol under codev/garbage-collection/

This schedules a daily /simplify pass that:

• Launches 3 parallel review agents (code reuse, quality, efficiency)
• Aggregates findings into a prioritized list
• Creates a spec + plan under a garbage-collection directory
• Implements the fixes autonomously
• Runs the full test suite to verify

The problem: This only works while my session is open. I want this running every night regardless of whether I have Claude Code open. A daemon would make this "set and forget" — like a CI job but for continuous codebase health.

Suggested UX

# Current (session-only, already works)
/loop 1d /simplify ...

# Proposed (persistent, survives exit)
/loop 1d --persist /simplify ...

# Or a separate command
/cron create "0 0 * * *" /simplify ...

# Manage persistent jobs from any session
/cron list
/cron delete <id>

The daemon could also serve other use cases:

• Nightly test runs with failure triage
• Periodic dependency update checks
• Scheduled PR review sweeps
• Monitoring/alerting on codebase metrics

Love the direction CronCreate is going — persistent scheduling would unlock a whole new class of autonomous workflows.