统一 AGC 开发端口分配

将 AGC Vite 纳入 Linux 用户端口段第六槽位
同步 Tauri devUrl、Vite 监听和配套后端端口预留
兼容迁移旧五端口注册记录并阻止重复分配
补齐动态配置顺序、跨平台和进程生命周期回归测试
更新开发运维文档、端口 skill 与项目共享记忆

scripts/dev.mjs

@@ -1447,7 +1447,17 @@ class DevRunner {
       return;
     }
 
-    const resolvedPorts = await resolveDevStackPorts(portConfig);
+    const reservedPorts = new Set();
+    const agcVitePort = normalizePort(
+      this.baseEnv.GENARRATIVE_AGC_VITE_PORT,
+      0,
+    );
+    if (agcVitePort > 0) {
+      reservedPorts.add(agcVitePort);
+    }
+    const resolvedPorts = await resolveDevStackPorts(portConfig, {
+      reservedPorts,
+    });
 
     for (const [name, resolvedPort] of Object.entries(resolvedPorts)) {
       const config = portConfig[name];