v9.5: 實作標籤完全不重疊算法

- 新增 _calculate_lane_conflicts_v2() 分開返回標籤重疊和線穿框分數
- 修改泳道選擇算法，優先選擇無標籤重疊的泳道
- 兩階段搜尋：優先側別無可用泳道則嘗試另一側
- 增強日誌輸出，顯示標籤範圍和詳細衝突分數

🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>

frontend-react/package.json

@@ -0,0 +1,45 @@
+{
+  "name": "frontend-react",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc -b && vite build",
+    "lint": "eslint .",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "@types/d3": "^7.4.3",
+    "axios": "^1.13.2",
+    "clsx": "^2.1.1",
+    "d3": "^7.9.0",
+    "lucide-react": "^0.552.0",
+    "plotly.js": "^3.2.0",
+    "react": "^19.1.1",
+    "react-dom": "^19.1.1",
+    "react-dropzone": "^14.3.8",
+    "react-plotly.js": "^2.6.0",
+    "tailwind-merge": "^3.3.1"
+  },
+  "devDependencies": {
+    "@eslint/js": "^9.36.0",
+    "@tailwindcss/typography": "^0.5.19",
+    "@types/node": "^24.6.0",
+    "@types/plotly.js": "^3.0.8",
+    "@types/react": "^19.1.16",
+    "@types/react-dom": "^19.1.9",
+    "@types/react-plotly.js": "^2.6.3",
+    "@vitejs/plugin-react": "^5.0.4",
+    "autoprefixer": "^10.4.21",
+    "eslint": "^9.36.0",
+    "eslint-plugin-react-hooks": "^5.2.0",
+    "eslint-plugin-react-refresh": "^0.4.22",
+    "globals": "^16.4.0",
+    "postcss": "^8.5.6",
+    "tailwindcss": "^3.4.18",
+    "typescript": "~5.9.3",
+    "typescript-eslint": "^8.45.0",
+    "vite": "^7.1.7"
+  }
+}