Initial commit: Video detection platform with YOLO models

Features:
- Fire detection (YOLOv10)
- Helmet detection (YOLOv8)
- Crowd detection (YOLOv8)
- Smoking detection (YOLOv8)
- Loitering detection (YOLOv8)

Tech Stack:
- Frontend: Vue 3 + Vite + Element Plus
- Backend: FastAPI + WebSocket
- Monorepo: pnpm workspace + Turbo
- Docker support included

packages/shared-types/package.json

@@ -0,0 +1,15 @@
+{
+  "name": "@jc-video/shared-types",
+  "version": "1.0.0",
+  "description": "前后端共享类型定义",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "scripts": {
+    "build": "tsc",
+    "dev": "tsc --watch",
+    "clean": "rm -rf dist node_modules"
+  },
+  "devDependencies": {
+    "typescript": "^5.3.0"
+  }
+}