- PR #10: Add sentinel markers for robust JSON parsing between container
and host. Fallback to last-line parsing for backwards compatibility.
- PR #5: Look up target JID from registeredGroups instead of trusting
IPC payload, fixing cross-group scheduled tasks getting wrong chat_jid.
- PR #8: Add lightweight schedule validation in container MCP that
returns errors to agents (cron syntax, positive interval, valid ISO
timestamp). Also defensive validation on host side.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>