feat: Add navigation bar and multi-page dashboard

- Add navigation bar with 4 main sections: Tasks, Wiki, Agents, Usage
- Implement Wiki page with task documentation viewer
- Implement Agents page showing workspace, tools, and current tasks
- Implement Usage page displaying providers, models, and quotas
- Add API endpoints: /api/agents, /api/usage, /api/wiki
- Add agent heartbeat endpoint for task assignment
- Update Docker compose with volume mounts for agent and config data
- Add comprehensive CSS for all pages and responsive design
- Add JavaScript navigation and dynamic content loading

🚀 Features:
- 📋 Kanban task board (existing)
- 📚 Wiki documentation viewer
- 🤖 Agent fleet management dashboard
- 📊 Provider usage and quota monitoring
- 🔗 Real-time WebSocket updates
- 📱 Responsive mobile design

docker-compose.yml

@@ -8,13 +8,11 @@ services:
     environment:
       - PORT=8395
       - DB_PATH=/app/data/tasks.db
-      - WIKI_DIR=/home/bear/.openclaw/workspace/wiki
+      - WIKI_DIR=/app/wiki
+      - AGENTS_DIR=/app/agents
+      - OPENCLAW_CONFIG=/app/config/openclaw.json
     volumes:
       - ./data:/app/data
-      - /home/bear/.openclaw/workspace/wiki:/home/bear/.openclaw/workspace/wiki
-    networks:
-      - proxy-net
-
-networks:
-  proxy-net:
-    external: true
+      - /home/bear/.openclaw/workspace/wiki:/app/wiki
+      - /home/bear/.openclaw/agents:/app/agents:ro
+      - /home/bear/.openclaw/openclaw.json:/app/config/openclaw.json:ro