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

turbo.json

@@ -9,6 +9,22 @@
     "compile": {
       "dependsOn": ["build"]
     },
+    "dist": {},
+    "dist:linux": {},
+    "dist:mac": {},
+    "dist:win": {},
+    "@furtherverse/desktop#dist": {
+      "dependsOn": ["@furtherverse/server#compile"]
+    },
+    "@furtherverse/desktop#dist:linux": {
+      "dependsOn": ["@furtherverse/server#compile"]
+    },
+    "@furtherverse/desktop#dist:mac": {
+      "dependsOn": ["@furtherverse/server#compile"]
+    },
+    "@furtherverse/desktop#dist:win": {
+      "dependsOn": ["@furtherverse/server#compile"]
+    },
     "dev": {
       "cache": false,
       "persistent": true