fix: harden conversational mode draft revisions

src/cognitive_agent/application/codex_assistant.py

@@ -983,6 +983,22 @@ class CodexAssistantService:
                 if draft.get("existing_mode_id")
                 else "确认后可保存为功能模式。"
             )
+            requested_operation_count = draft.get("requested_operation_count")
+            changed_operation_count = draft.get("changed_operation_count")
+            no_effective_change = (
+                isinstance(requested_operation_count, int)
+                and not isinstance(requested_operation_count, bool)
+                and requested_operation_count > 0
+                and isinstance(changed_operation_count, int)
+                and not isinstance(changed_operation_count, bool)
+                and changed_operation_count == 0
+            )
+            if no_effective_change:
+                return (
+                    f"待保存的“{name}”模式中，该项原本已是目标状态，"
+                    f"已保持不变并重新校验全部{operation_count}项组合动作。"
+                    f"原草稿未被保存或执行，可以继续调整；{persistence_hint}"
+                )
             return (
                 f"已调整待保存的“{name}”模式，并重新校验全部"
                 f"{operation_count}项组合动作。原草稿未被保存或执行，"
@@ -1839,6 +1855,8 @@ class CodexAssistantService:
                     "generation_source",
                     "draft_revision",
                     "revises_source_request_id",
+                    "requested_operation_count",
+                    "changed_operation_count",
                 )
                 if key in mode_profile_draft
             }