fix(backend/hitl): address CodeRabbit review feedback

- Use return_exceptions=True in asyncio.gather for auto-approval creation
  to prevent endpoint failure when auto-approval fails (reviews already processed)
- Fix empty payload handling: use explicit None check instead of truthiness
- Distinguish auto-approvals from normal approvals: auto-approvals always
  use current input_data, normal approvals preserve explicitly empty payloads

autogpt_platform/backend/backend/api/features/executions/review/routes.py

@@ -216,12 +216,19 @@ async def process_review_action(
                     payload=review.payload,
                 )
 
-        await asyncio.gather(
+        results = await asyncio.gather(
             *[
                 create_auto_approval_for_review(node_exec_id, review)
                 for node_exec_id, review in approved_reviews
-            ]
+            ],
+            return_exceptions=True,
         )
+        for result in results:
+            if isinstance(result, Exception):
+                logger.error(
+                    "Failed to create auto-approval record",
+                    exc_info=result,
+                )
 
     # Count results
     approved_count = sum(

autogpt_platform/backend/backend/blocks/helpers/review.py

@@ -106,8 +106,20 @@ class HITLReviewHelper:
                 f"found existing approval"
             )
             # Return a new ReviewResult with the current node_exec_id but approved status
+            # For auto-approvals, always use current input_data
+            # For normal approvals, use approval_result.data unless it's None
+            is_auto_approval = approval_result.node_exec_id != node_exec_id
+            approved_data = (
+                input_data
+                if is_auto_approval
+                else (
+                    approval_result.data
+                    if approval_result.data is not None
+                    else input_data
+                )
+            )
             return ReviewResult(
-                data=approval_result.data if approval_result.data else input_data,
+                data=approved_data,
                 status=ReviewStatus.APPROVED,
                 message=approval_result.message,
                 processed=True,