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

scripts/dev.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+# 开发模式启动脚本
+
+echo "🚀 启动开发服务器..."
+
+# 使用 concurrently 同时启动前后端
+cd "$(dirname "$0")/.."
+
+# 检查 concurrently
+if ! command -v concurrently &> /dev/null; then
+    echo "📦 安装 concurrently..."
+    pnpm add -D concurrently
+fi
+
+# 启动前后端
+pnpm concurrently \
+    --names "frontend,backend" \
+    --prefix-colors "blue,green" \
+    "cd apps/web && pnpm dev" \
+    "cd apps/server && source venv/bin/activate && python main.py"