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）

console/package.json

@@ -0,0 +1,62 @@
+{
+  "name": "scoreboard-console",
+  "productName": "Scoreboard Console",
+  "version": "0.1.0",
+  "private": true,
+  "description": "赛事积分榜 · 桌面宿主：守护 Go 服务端并把大屏投到扩展屏",
+  "main": "main/index.js",
+  "scripts": {
+    "start": "electron .",
+    "check": "node -e \"const {execSync}=require('child_process');execSync('for f in $(find . -name \\\"*.js\\\" -not -path \\\"./node_modules/*\\\"); do node --check \\\"$f\\\"; done',{stdio:'inherit'})\"",
+    "dist": "electron-builder --win --x64",
+    "pack": "electron-builder --dir"
+  },
+  "devDependencies": {
+    "electron": "^38.0.0",
+    "electron-builder": "^26.0.12"
+  },
+  "build": {
+    "appId": "top.yeij.scoreboard.console",
+    "productName": "Scoreboard Console",
+    "directories": {
+      "output": "../dist/console",
+      "buildResources": "build"
+    },
+    "files": [
+      "main/**/*",
+      "renderer/**/*",
+      "config.json",
+      "package.json"
+    ],
+    "extraFiles": [
+      {
+        "from": "../dist/scoreboard.exe",
+        "to": "scoreboard.exe",
+        "filter": ["**/*"]
+      },
+      {
+        "from": "../config.yaml",
+        "to": "config.yaml"
+      }
+    ],
+    "win": {
+      "target": [
+        {
+          "target": "nsis",
+          "arch": ["x64"]
+        },
+        {
+          "target": "zip",
+          "arch": ["x64"]
+        }
+      ],
+      "artifactName": "${productName}-${version}-${arch}.${ext}"
+    },
+    "nsis": {
+      "oneClick": false,
+      "allowToChangeInstallationDirectory": true,
+      "createDesktopShortcut": true,
+      "shortcutName": "Scoreboard Console"
+    }
+  }
+}