添加cadfs_to_cdsl代码，优化cad生成

backend/app/cad_agent/composition.py

@@ -18,6 +18,7 @@ from app.cad_agent.application.requirements import RequirementsCommandHandler
 from app.cad_agent.application.workflow import ModelIdentity, WorkflowConfig, WorkflowCoordinator
 from app.cad_agent.domain.verifier_registry import default_registry
 from app.settings import Settings
+from app.services.storage import WorkspaceStore
 
 
 @dataclass(frozen=True, slots=True)
@@ -35,11 +36,13 @@ def compose_v3(settings: Settings) -> V3Services:
         # Protocol 3.1 has no valid interpretation for structured-only task
         # artifacts, so clear that task root together with its old database.
         shutil.rmtree(settings.task_root)
+    if repository.protocol_reset:
+        WorkspaceStore(settings).clear_current_task_references()
     artifacts = FileArtifactStore(settings.task_root)
     runtime = ProfileCadRuntime(settings)
     registry = default_registry()
     verifier = RegistryVerifierExecutor(registry)
-    requirements = RequirementsCommandHandler(repository, artifacts, registry)
+    requirements = RequirementsCommandHandler(repository, artifacts, registry, atomic_ids=runtime.supported_atomic_ids)
     actions = ActionCommandHandler(repository, artifacts, runtime, verifier)
     fallbacks = tuple(
         ModelIdentity(provider.id, model.id)