feat: add supports_flip/flip_axis to SubPattern for Phase B flip gate

app/question_gen/strategy_action_recognition.py

@@ -85,6 +85,8 @@ _TEMPORAL_REASONING_FAILURE = SubPattern(
         "即同一组真实事件的错误排列或错误的第 N 次定位。"
         "严禁使用视频中未出现的缺席事件作为干扰项。"
     ),
+    supports_flip=True,
+    flip_axis="before/after",
 )
 
 _SEMANTIC_RIGIDITY = SubPattern(
@@ -183,6 +185,8 @@ _CROSS_SEGMENT_ENTITY_TRACKING = SubPattern(
         "仅在【动作主体】这一单一维度上与正解不同。"
         "严禁编造任何实体未做过的缺席动作。"
     ),
+    supports_flip=True,
+    flip_axis="first/last",
 )
 
 _EVIDENCE_GAP_CONFABULATION = SubPattern(