* feat(discord): channel-side read receipt and subagent indicator
- Add 👀 reaction on message receipt, removed after bot reply
- Add 🔧 reaction on first progress message, removed on final reply
- Both managed purely in discord.py channel layer, no subagent.py changes
- Config: read_receipt_emoji, subagent_emoji with sensible defaults
Addresses maintainer feedback on HKUDS/nanobot#2330
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix(discord): add both reactions on inbound, not on progress
_progress flag is for streaming chunks, not subagent lifecycle.
Add 👀 + 🔧 immediately on message receipt, clear both on final reply.
* fix: remove stale _subagent_active reference in _clear_reactions
* fix(discord): clean up reactions on message handling failure
Previously, if _handle_message raised an exception, pending reactions
(read receipt + subagent indicator) would remain on the user's message
indefinitely since send() — which handles normal cleanup — would never
be called.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* refactor(discord): replace subagent_emoji with delayed working indicator
- Rename subagent_emoji → working_emoji (honest naming: not tied to
subagent lifecycle)
- Add working_emoji_delay (default 2s) — cosmetic delay so 🔧 appears
after 👀, cancelled if bot replies before delay fires
- Clean up: cancel pending task + remove both reactions on reply/error
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
