feat: M0-M2 骨架落地（服务端/前端/宿主/数据库/积分引擎）

- server: Go 单二进制骨架，embed 内嵌前端，配置/迁移/HTTP 路由
- store: system.db + event.db 两套迁移，业务表 + 种子数据
- domain: 积分引擎（并列三口径/计分通道/流水/排名/破纪录）+ 68 个测试
- web: Vite + Vue 三入口骨架 + shared 层（类型/API/WebSocket 客户端）
- console: Electron 宿主骨架（选屏/防熄屏/进程守护/托盘）

web/package.json

@@ -0,0 +1,23 @@
+{
+  "name": "scoreboard-web",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "vue-tsc --noEmit && vite build",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "pinia": "^4.0.3",
+    "vue": "^3.5.42",
+    "vue-router": "^5.3.1"
+  },
+  "devDependencies": {
+    "@types/node": "^26.5.0",
+    "@vitejs/plugin-vue": "^6.0.8",
+    "typescript": "^5.9.3",
+    "vite": "^8.2.2",
+    "vue-tsc": "^3.3.11"
+  }
+}