重构爆管定位请求，移除不必要的时间参数

app/services/leakage_identifier.py

@@ -29,6 +29,7 @@ DEFAULT_N_WORKERS = max(1, min((os.cpu_count() or 1) - 1, 4))
 
 def run_leakage_identification(
     network: str,
+    username: str,
     observed_pressure_data: (
         str | pd.DataFrame | dict[str, list[Any]] | list[dict[str, Any]] | None
     ) = None,
@@ -47,7 +48,6 @@ def run_leakage_identification(
     scada_end: datetime | str | None = None,
     sensor_nodes: list[str] | None = None,
     scheme_name: str | None = None,
-    username: str = "admin",
 ) -> dict[str, Any]:
     os.makedirs(output_dir, exist_ok=True)
     inp_path = _prepare_leakage_inp(network)