feat(expenses): add authoritative pre-review workflow

server/tests/test_attachment_association_jobs.py

@@ -422,6 +422,13 @@ def test_attachment_association_job_links_receipts_after_conversation_exit(
             assert claim is not None
             attached_items = [item for item in claim.items if item.invoice_id]
             assert len(attached_items) == 2
+            pre_review_flags = [
+                flag
+                for flag in list(claim.risk_flags_json or [])
+                if isinstance(flag, dict) and flag.get("source") == "ai_pre_review"
+            ]
+            assert len(pre_review_flags) == 1
+            assert pre_review_flags[0]["created_at"]
             receipt_links = list(
                 db.scalars(
                     select(ExpenseCaseLink).where(ExpenseCaseLink.resource_type == "receipt")
@@ -438,6 +445,13 @@ def test_attachment_association_job_links_receipts_after_conversation_exit(
                 "receipt_received",
                 "attachment_associated",
             }
+            expense_case = db.scalar(
+                select(ExpenseCase).where(
+                    ExpenseCase.id == receipt_links[0].expense_case_id
+                )
+            )
+            assert expense_case is not None
+            assert expense_case.current_stage == "claiming"
 
         linked_receipts = receipt_service.list_receipts(
             current_user=current_user, status_filter="linked"