## Description
<!-- What does this PR do? Which issue does it close? -->

Closes #

## Type
- [ ] feat — new feature (MINOR version bump)
- [ ] fix — bug fix (PATCH version bump)
- [ ] docs — documentation only
- [ ] refactor — code restructuring (no behavior change)

## Platform(s) Affected
- [ ] Hermes Python (Tanko, Mumuni, Koonimo, Koby)
- [ ] pi TypeScript (Abiba)
- [ ] Agent Zero (kagentz)
- [ ] Shared infrastructure (config, deploy, docs)

## Pre-Merge Checklist
- [ ] Config schema validated against `config.yaml.example`
- [ ] Plugin starts and connects to Zulip on affected CT(s)
- [ ] Health endpoint returns 200
- [ ] @mention detection works (bot receives own mentions)
- [ ] Error handling: timeout produces graceful message
- [ ] No API keys or secrets in code
- [ ] ADRs referenced if decision changed

## Testing
<!-- How was this tested? Which CT(s)? -->

## Screenshots / Logs
<!-- If applicable -->