ui+api: dedup per-app marks by app_key; auto-refresh runtime

selective-vpn-gui/api_client.py

@@ -825,6 +825,9 @@ class ApiClient:
         op: str,
         target: str,
         cgroup: str = "",
+        unit: str = "",
+        command: str = "",
+        app_key: str = "",
         timeout_sec: int = 0,
     ) -> TrafficAppMarksResult:
         payload: Dict[str, Any] = {
@@ -833,6 +836,12 @@ class ApiClient:
         }
         if cgroup:
             payload["cgroup"] = str(cgroup).strip()
+        if unit:
+            payload["unit"] = str(unit).strip()
+        if command:
+            payload["command"] = str(command).strip()
+        if app_key:
+            payload["app_key"] = str(app_key).strip()
         if int(timeout_sec or 0) > 0:
             payload["timeout_sec"] = int(timeout_sec)