提交关于N5功能，“involute_gear渐开线齿廓与齿条专用生成”的改动

backend/tests/test_author_guidance.py

@@ -73,7 +73,7 @@ class AuthorGuidanceTests(unittest.TestCase):
             self.assertLessEqual(len(selection.content), 1_200)
             self.assertIn("世界坐标", selection.content)
             covered.update(section_id for section_id in selection.section_ids if section_id.startswith("op-"))
-        self.assertEqual(covered, {"op-extrude-add", "op-extrude-cut", "op-loft", "op-revolve", "op-hole", "op-reference", "op-pattern", "op-finish", "op-sphere", "op-primitives", "op-thread"})
+        self.assertEqual(covered, {"op-extrude-add", "op-extrude-cut", "op-loft", "op-revolve", "op-hole", "op-reference", "op-pattern", "op-finish", "op-sphere", "op-primitives", "op-thread", "op-bend", "op-gear"})
 
     def test_phase_repair_and_budget_selection_are_stable(self) -> None:
         guidance = FileAuthorGuidance(GUIDANCE_ROOT, max_chars=3_600)