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refactor(pi): standalone Zulip gateway service — replaces pi extension

Complete rewrite of the pi Zulip extension as a standalone Node.js service
with direct harness API calls. No longer depends on pi's session — survives
pi shutdown and restart.

Changes:
- src/index.ts: Complete rewrite — standalone process, not a pi extension
  - Direct harness API calls (POST /v1/chat/completions) with conversation memory
  - Per-sender conversation history (up to 50 messages)
  - Placeholder->edit streaming for Zulip DMs
  - Typing indicators via Zulip API
  - Health endpoint on :9200
  - Exponential backoff reconnection
  - Graceful shutdown on SIGINT/SIGTERM
- abiba-zulip.service: systemd service unit file
- README.md: Updated deployment instructions
- package.json/tsconfig.json: Updated for standalone app

Deploy: npm install -> npx tsc -> systemctl enable abiba-zulip
Closes issue #24 (Hermes parity for pi)

2026-06-24 21:54:21 +00:00

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Abiba Zulip Gateway — Standalone Service

Replaces the old pi extension (~/.pi/agent/extensions/zulip/).

Instead of injecting messages into pi's session (which dies when pi exits), this runs as an independent Node.js systemd service that:

Polls Zulip event queue for DMs
Calls the harness inference API directly (no pi dependency)
Maintains per-sender conversation memory
Survives pi shutdown and restart

Architecture

Zulip event queue → poll every 3s → DM detected
  → send typing indicator + placeholder
  → POST /v1/chat/completions with conversation history
  → edit placeholder with final response

Requirements

Node.js 22+
npm install in this directory

Config

All config via environment variables. Copy abiba-zulip.service to set up as a systemd service, or run directly:

ZULIP_EMAIL=abiba-bot@chat.sysloggh.net \
ZULIP_API_KEY=your_key \
ZULIP_SITE=https://chat.sysloggh.net \
HARNESS_URL=http://192.168.68.116/v1/chat/completions \
HARNESS_API_KEY=sk-xxx \
HARNESS_MODEL=qwen3.6-35B-A3B \
node dist/index.js

Deploy as a service

# 1. Install deps
cd /opt/abiba-zulip
npm install

# 2. Build
npx tsc

# 3. Install systemd service
cp abiba-zulip.service /etc/systemd/system/
systemctl daemon-reload
systemctl enable abiba-zulip
systemctl start abiba-zulip

# 4. Check status
systemctl status abiba-zulip
journalctl -u abiba-zulip -f

# 5. Health check
curl http://127.0.0.1:9200/health

Development

npm run dev    # watch mode (tsc watch)
npm run build  # compile
npm start      # run compiled

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