build: electron-builder 打包配置 + 首次构建（win-unpacked 可运行 168MB，cross-env 注入 npmmirror 镜像；打包产物冒烟测试启动 .exe）

apps/desktop/package.json

@@ -1,14 +1,36 @@
 {
   "name": "@hunter/desktop",
   "version": "0.0.0",
+  "description": "狩夜人笔记 — 本地优先的 Markdown 知识库",
+  "author": "hunter-dev",
   "private": true,
   "type": "module",
   "main": "dist-electron/main/index.js",
+  "build": {
+    "appId": "com.hunter.notes",
+    "productName": "HunterNotes",
+    "directories": {
+      "output": "release"
+    },
+    "files": [
+      "dist-electron/**/*",
+      "package.json"
+    ],
+    "asar": true,
+    "win": {
+      "target": "dir"
+    },
+    "nsis": {
+      "oneClick": false,
+      "allowToChangeInstallationDirectory": true
+    }
+  },
   "scripts": {
     "dev": "electron-vite dev",
     "build": "electron-vite build",
     "typecheck": "tsc -b",
-    "test:e2e": "electron-vite build && playwright test"
+    "test:e2e": "electron-vite build && playwright test",
+    "dist": "electron-vite build && cross-env ELECTRON_MIRROR=https://npmmirror.com/mirrors/electron/ ELECTRON_BUILDER_BINARIES_MIRROR=https://npmmirror.com/mirrors/electron-builder-binaries/ electron-builder --win"
   },
   "dependencies": {
     "@hunter/shared": "workspace:*",
@@ -44,7 +66,9 @@
     "@types/node": "^20.0.0",
     "@types/react": "^18.3.0",
     "@types/react-dom": "^18.3.0",
+    "cross-env": "^10.1.0",
     "electron": "^30.0.0",
+    "electron-builder": "^26.15.3",
     "electron-vite": "^2.3.0",
     "playwright": "^1.62.1",
     "react": "^18.3.1",