chore: remove working_in_progress for agent builder endpoints

Co-authored-by: Yifan Wang <wanyif@google.com>
PiperOrigin-RevId: 827698290

src/google/adk/cli/fast_api.py

@@ -40,7 +40,6 @@ from ..evaluation.local_eval_sets_manager import LocalEvalSetsManager
 from ..memory.in_memory_memory_service import InMemoryMemoryService
 from ..runners import Runner
 from ..sessions.in_memory_session_service import InMemorySessionService
-from ..utils.feature_decorator import working_in_progress
 from .adk_web_server import AdkWebServer
 from .service_registry import get_service_registry
 from .utils import envs
@@ -207,7 +206,6 @@ def get_fast_api_app(
       **extra_fast_api_args,
   )
 
-  @working_in_progress("builder_save is not ready for use.")
   @app.post("/builder/save", response_model_exclude_none=True)
   async def builder_build(
       files: list[UploadFile], tmp: Optional[bool] = False
@@ -245,7 +243,6 @@ def get_fast_api_app(
 
     return True
 
-  @working_in_progress("builder_save is not ready for use.")
   @app.post("/builder/app/{app_name}/cancel", response_model_exclude_none=True)
   async def builder_cancel(app_name: str) -> bool:
     base_path = Path.cwd() / agents_dir
@@ -279,7 +276,6 @@ def get_fast_api_app(
       return False
     return True
 
-  @working_in_progress("builder_get is not ready for use.")
   @app.get(
       "/builder/app/{app_name}",
       response_model_exclude_none=True,