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

gateway/.gitignore

@@ -0,0 +1,24 @@
+# Python
+__pycache__/
+*.pyc
+.venv/
+*.egg-info/
+
+# OS
+.DS_Store
+Thumbs.db
+
+# IDE
+.vscode/
+.idea/
+
+# Logs
+logs/
+*.log
+
+# Temp
+temp/
+*.dat
+
+# Large installer
+WeChatSetup-*.exe