feat: 新增 core/agents 模块和 nanobot

- 新增 agents 模块，包含 agent、api、skills 等子模块
- 新增 nanobot 项目，支持多渠道集成
- 添加启动脚本 start-all.bat 和 start-all.sh

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

core/nanobot/bridge/package.json

@@ -0,0 +1,26 @@
+{
+  "name": "nanobot-whatsapp-bridge",
+  "version": "0.1.0",
+  "description": "WhatsApp bridge for nanobot using Baileys",
+  "type": "module",
+  "main": "dist/index.js",
+  "scripts": {
+    "build": "tsc",
+    "start": "node dist/index.js",
+    "dev": "tsc && node dist/index.js"
+  },
+  "dependencies": {
+    "@whiskeysockets/baileys": "7.0.0-rc.9",
+    "ws": "^8.17.1",
+    "qrcode-terminal": "^0.12.0",
+    "pino": "^9.0.0"
+  },
+  "devDependencies": {
+    "@types/node": "^20.14.0",
+    "@types/ws": "^8.5.10",
+    "typescript": "^5.4.0"
+  },
+  "engines": {
+    "node": ">=20.0.0"
+  }
+}