feat: complete HomeAgent architecture v2

- IO abstraction layer with OutputChannel routing and capability validation
- Three-layer memory (Context-Document-Graph) with TF-IDF relevance pruning
- OneBot V11 QQ protocol plugin with Reverse WebSocket client
- Plugin system with hot-reload (SKILL.md + native factories)
- Knowledge system with TF-IDF vector indexing
- Personality system (personal.md)
- Text memory (JSONL with rotation)
- Change tracker (overlayfs) with rollback
- Lua adapter VM
- Design document (DESIGN.md)

Module: gitcode.com/JianFeeeee/HomeAgent

deploy/homeagent.service

@@ -0,0 +1,33 @@
+[Unit]
+Description=HomeAgent - Personal AI Home Assistant
+Documentation=https://github.com/trueagent/HomeAgent
+After=network-online.target docker.service
+Wants=network-online.target
+
+[Service]
+Type=simple
+ExecStart=/usr/local/bin/homed -config /etc/homeagent/config.yaml -data /var/lib/homeagent
+Restart=always
+RestartSec=10
+StartLimitBurst=3
+StartLimitInterval=60s
+
+# Security hardening
+NoNewPrivileges=true
+ProtectSystem=strict
+ProtectHome=true
+PrivateTmp=true
+PrivateDevices=false
+DevicePolicy=closed
+# Audio devices
+DeviceAllow=/dev/snd rw
+DeviceAllow=/dev/dsp rw
+
+# Resource limits
+LimitNOFILE=65536
+LimitNPROC=256
+MemoryMax=2G
+CPUQuota=100%
+
+[Install]
+WantedBy=multi-user.target