Email Worker: Quarantine system for suspicious emails

[nev-offload]

Description

Suspicious emails should go to a separate quarantine table instead of the main inbox, allowing for review before final processing.

Context

This provides a safe holding area for emails flagged as potential prompt injection attempts, preventing them from affecting the main system while allowing manual review.

Definition of Done

• New quarantined_emails table in D1
• Emails above injection threshold go to quarantine
• API endpoint to review/release quarantined emails
• Notification when email is quarantined

Priority

P2

[github-actions]

🤖 OpenClaw Bot

HTTP 429: Rate limit exceeded: free-models-per-min.