feat(module): add ServiceBaseHelper for service and instance

app/helper/mediaserver.py

@@ -1,5 +1,16 @@
-class MediaServerHelper:
+from app.helper.servicebase import ServiceBaseHelper
+from app.schemas import MediaServerConf
+from app.schemas.types import SystemConfigKey
+
+
+class MediaServerHelper(ServiceBaseHelper[MediaServerConf]):
     """
     媒体服务器帮助类
     """
-    pass
+
+    def __init__(self):
+        super().__init__(
+            config_key=SystemConfigKey.MediaServers,
+            conf_type=MediaServerConf,
+            modules=["PlexModule", "EmbyModule", "JellyfinModule"]
+        )