优化漏损识别器，支持多进程评估

tests/api/test_leakage_endpoints.py

@@ -8,8 +8,8 @@ from app.api.v1.endpoints import leakage as leakage_endpoint
 def _build_client() -> TestClient:
     app = FastAPI()
     app.include_router(leakage_endpoint.router, prefix="/api/v1/leakage")
-    app.dependency_overrides[leakage_endpoint.get_current_user] = lambda: SimpleNamespace(
-        username="tester"
+    app.dependency_overrides[leakage_endpoint.get_current_keycloak_username] = (
+        lambda: "tester"
     )
     return TestClient(app)