updated plugin refactor and added FTP and SCP plugins , also hydrusnetwork plugin migration

ProviderCore/base.py

@@ -422,6 +422,24 @@ class Provider(ABC):
         _ = quiet_mode
         return None
 
+    def config_helper_text(self) -> str:
+        """Optional helper text shown in the config editor."""
+
+        return ""
+
+    def config_actions(self) -> List[Dict[str, Any]]:
+        """Optional actions exposed in the config editor for this provider."""
+
+        return []
+
+    def run_config_action(self, action_id: str, **_kwargs: Any) -> Dict[str, Any]:
+        """Execute a provider-owned config action from the config editor."""
+
+        return {
+            "ok": False,
+            "message": f"Provider '{self.name}' does not support config action '{action_id}'.",
+        }
+
     def upload(self, file_path: str, **kwargs: Any) -> str:
         """Upload a file and return a URL or identifier."""
         raise NotImplementedError(f"Provider '{self.name}' does not support upload")