feat: project scaffold + bridge + maplibre engine

- Vite + Vue 3 + TypeScript strict
- @yuto-water/js-bridge (types, detector, browser provider)
- MapLibre engine (MapManager singleton, MapFactory, LayerFactory)
- Map composables (useMap, useLayer, usePopup)
- Tianditu tile source, 6 layer type factory
- SCSS design tokens (water-blue theme, dark mode)
- Vant 4, maplibre-gl, axios, pinia, echarts deps
- Build passes (vue-tsc + vite)

package.json

@@ -0,0 +1,35 @@
+{
+  "name": "yuto-water-h5",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "vue-tsc -b && vite build",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "@turf/turf": "^7.3.5",
+    "axios": "^1.18.0",
+    "crypto-js": "^4.2.0",
+    "dayjs": "^1.11.21",
+    "echarts": "^6.1.0",
+    "encryptlong": "^3.1.4",
+    "maplibre-gl": "^5.24.0",
+    "mitt": "^3.0.1",
+    "pinia": "^3.0.4",
+    "supercluster": "^8.0.1",
+    "uuid": "^14.0.0",
+    "vant": "^4.9.24",
+    "vue": "^3.5.34"
+  },
+  "devDependencies": {
+    "@types/node": "^24.12.3",
+    "@vitejs/plugin-vue": "^6.0.6",
+    "@vue/tsconfig": "^0.9.1",
+    "sass-embedded": "^1.100.0",
+    "typescript": "~6.0.2",
+    "vite": "^8.0.12",
+    "vue-tsc": "^3.2.8"
+  }
+}