Add Slack as a messaging channel using Socket Mode (WebSocket), bringing
the total supported channels to 8. Features include bidirectional
messaging, thread support with per-thread session context, @mention
handling, ack reactions (👀/✅), slash commands,
file/attachment support with Groq Whisper audio transcription, and
allowlist filtering by Slack user ID.
Closes#31
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Add at_seconds parameter for one-time reminders (e.g., "remind me in 10 minutes")
- Update every_seconds description to emphasize recurring-only usage
- Route cron delivery: deliver=true sends directly, deliver=false uses agent
- Fix cron data path from ~/.picoclaw/cron to workspace/cron
- Fix sessions path from workspace/../sessions to workspace/sessions
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
