refactor: 统一打包命令为 dist 体系，build 仅编译不打包

- build:linux/mac/win → dist/dist:linux/dist:mac/dist:win
- Turbo 任务依赖：desktop#dist:* → server#compile → server#build
- 根目录 bun dist 一条命令完成完整打包流水线
- 更新 AGENTS.md 文档同步命令变更

package.json

@@ -11,6 +11,10 @@
     "build": "turbo run build",
     "compile": "turbo run compile",
     "dev": "turbo run dev",
+    "dist": "turbo run dist",
+    "dist:linux": "turbo run dist:linux",
+    "dist:mac": "turbo run dist:mac",
+    "dist:win": "turbo run dist:win",
     "fix": "turbo run fix",
     "typecheck": "turbo run typecheck"
   },