Initial: multi-agent XMPP communication system with dashboard

- Platform-based architecture (Windows/Linux/Mac)
- Agent instance registry (agents.yaml)
- Management dashboard with cross-platform monitoring
- xmpp_bot with HTTP bridge + health endpoints
- wechat_agent with WeChat-Hermes bridging
- Platform services: ProcessGuardian, HealthProbe, APIRouter, ChannelBridge
- Deployment: systemd (Linux) + PowerShell (Windows)
- Monitoring: SSH+ejabberdctl for cross-platform presence

deploy/linux/xmpp-bot@.service

@@ -0,0 +1,20 @@
+[Unit]
+Description=XMPP Bot — %i
+After=network-online.target ejabberd.service
+Wants=network-online.target
+
+[Service]
+Type=simple
+User=hmo
+WorkingDirectory=/home/hmo/bots
+Environment="PYTHONUNBUFFERED=1"
+Environment="BOT_NAME=%i"
+ExecStart=/home/hmo/.local/bin/uv run python /home/hmo/bots/%i/bot.py
+Restart=always
+RestartSec=15
+StandardOutput=journal
+StandardError=journal
+SyslogIdentifier=xmpp-bot-%i
+
+[Install]
+WantedBy=multi-user.target