fetaure-rc/SIENTIAPDE-2164- fix: drop star-unpack guard on input_gate result, back to fixed 4-tuple

laborious/workflows/sub_workflows/prediction_process.py

@@ -134,22 +134,12 @@ class PredictionProcess:
 
         # `document` describes which filter(s) produced `path_flag` (`None` when nothing was
         # filtered); `path_flag_handler` is the one that decides whether and how to persist it.
-        # Star-unpack rather than a fixed 4-tuple: `input_gate` is a local activity, so its result
-        # is recorded in workflow history; an execution already in flight when this field was
-        # added would replay a 3-element result here, and exact unpacking would raise ValueError
-        # on replay (review finding, 2026-09-30).
-        (
-            path_flag,
-            confidence,
-            comment,
-            *document_tail,
-        ) = await workflow.execute_local_activity_method(
+        path_flag, confidence, comment, document = await workflow.execute_local_activity_method(
             Activities.input_gate,
             gate_input,
             retry_policy=retry_policy,
             start_to_close_timeout=timedelta(minutes=1),
         )
-        document = document_tail[0] if document_tail else None
 
         # Handle path decision based on filter results
         if await self.path_flag_handler(