添加cadfs_to_cdsl代码，优化cad生成

backend/app/cad_agent/evals/create_isolated_task.py

@@ -0,0 +1,40 @@
+"""Create a resumable live-evaluation task without starting its workflow."""
+
+from __future__ import annotations
+
+import argparse
+from dataclasses import replace
+import json
+from pathlib import Path
+import secrets
+import sys
+
+from app.cad_agent.composition import compose_v3
+from app.settings import get_settings
+
+
+def _arguments() -> argparse.Namespace:
+    parser = argparse.ArgumentParser(description="Create one isolated live CAD task for resume_one_step.")
+    parser.add_argument("--report-root", required=True, type=Path)
+    parser.add_argument("--prompt", required=True)
+    parser.add_argument("--task-id")
+    return parser.parse_args()
+
+
+def main() -> int:
+    arguments = _arguments()
+    root = arguments.report_root.resolve()
+    settings = get_settings()
+    services = compose_v3(replace(
+        settings,
+        task_root=root / "artifacts",
+        conversation_root=root / "conversations",
+    ))
+    task_id = arguments.task_id or f"cad_{secrets.token_hex(6)}"
+    services.workflow.create_task(task_id, arguments.prompt)
+    print(json.dumps({"task_id": task_id, "report_root": str(root)}, ensure_ascii=False))
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())