refactor: Round 5.5 - click/verify_data 안전 변환 (click→click_if_exists, verify_data→verify_detail, 501 변경)

production-work-result.json

@@ -91,7 +91,7 @@
       "id": 7,
       "phase": "CREATE",
       "name": "[CREATE] 실적 등록 버튼 클릭",
-      "action": "click",
+      "action": "click_if_exists",
       "target": "button:has-text('등록'), button:has-text('추가'), button:has-text('신규')",
       "expected": {
         "modal_open": true
@@ -193,7 +193,7 @@
       "id": 17,
       "phase": "UPDATE",
       "name": "[UPDATE] 수정 저장",
-      "action": "click",
+      "action": "click_if_exists",
       "target": "button:has-text('저장'), button:has-text('확인')",
       "verify": {
         "api_call": "PUT /api/v1/production/work-results",