add new status (#1219)

Author: nanjiangwill

slime/utils/types.py

@@ -31,6 +31,10 @@ class Status(Enum):
         COMPLETED = "completed"
         TRUNCATED = "truncated"
         ABORTED = "aborted"
+        # Indicates a recoverable or non-critical failure during generation (e.g., tool call failure,
+        # external API error, parsing error). Unlike ABORTED, FAILED samples may still contain partial
+        # valid output and can be retried or handled gracefully.
+        FAILED = "failed"
 
     status: Status = Status.PENDING