feat: 添加服务生成配置，优化服务解析逻辑，增强错误处理

.vscode/launch.json

@@ -4,6 +4,19 @@
     // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
     "version": "0.2.0",
     "configurations": [
+        {
+            "name": "service",
+            "type": "go",
+            "request": "launch",
+            "mode": "auto",
+            "program": "${workspaceFolder}",
+            "args": [
+                "gen",
+                "service",
+                "--path",
+                "/home/rogee/Projects/quyun_v2/backend/app/services"
+            ]
+        },
         {
             "name": "provider",
             "type": "go",