feat(login): 重构 login 服务启动方式

- 修改 login 服务端口配置，支持动态分配
- 优化 login 服务启动流程，增加信号处理
- 调整 ServerOption 类型，支持 int 类型端口
- 移除 CommendSvrInfo 相关代码，简化结构
- 更新 main 函数，采用新的服务启动方式

.vscode/tasks.json

@@ -0,0 +1,50 @@
+{
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "type": "shell",
+            "label": "go: build both packages in parallel",
+            "command": "start /B go build ${workspaceFolder}/login && start /B go build ${workspaceFolder}/logic",
+            "windows": {
+                "command": "start /B go build ${workspaceFolder}/login && start /B go build ${workspaceFolder}/logic"
+            },
+            "linux": {
+                "command": "go build ${workspaceFolder}/login & go build ${workspaceFolder}/logic & wait"
+            },
+            "osx": {
+                "command": "go build ${workspaceFolder}/login & go build ${workspaceFolder}/logic & wait"
+            },
+            "problemMatcher": [
+                "$go"
+            ],
+            "group": "build",
+            "detail": "Parallel build of login and logic packages"
+        },
+        {
+            "type": "go",
+            "label": "go: build login",
+            "command": "build",
+            "args": [
+                "${workspaceFolder}/login"
+            ],
+            "problemMatcher": [
+                "$go"
+            ],
+            "group": "build",
+            "detail": "cd ${workspaceFolder}; go build ${workspaceFolder}/login"
+        },
+        {
+            "type": "go",
+            "label": "go: build logic",
+            "command": "build",
+            "args": [
+                "${workspaceFolder}/logic"
+            ],
+            "problemMatcher": [
+                "$go"
+            ],
+            "group": "build",
+            "detail": "cd ${workspaceFolder}; go build ${workspaceFolder}/logic"
+        }
+    ]
+}