style: apply cargo fmt

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/application/dtos/user_dto.rs

@@ -30,10 +30,7 @@ impl From<User> for UserDto {
             updated_at: user.updated_at(),
             last_login_at: user.last_login_at(),
             active: user.is_active(),
-            auth_provider: user
+            auth_provider: user.oidc_provider().unwrap_or("local").to_string(),
-                .oidc_provider()
-                .unwrap_or("local")
-                .to_string(),
         }
     }
 }