refactor: 44개 시나리오 품질 개선 (false positive 제거 + flaky 수정 + E2E_TEST_ 표준화)

Phase 1 - False Positive 제거 (36개):
- R.ok=true 무조건 반환 → 조건부 검증으로 교체
- 영향: edge-*, form-validation-*, pagination-sort-*, search-*, reload-persist-*,
  batch-create-*, detail-roundtrip-*, workflow-*, cross-module-*

Phase 2 - Flaky rows[0] 패턴 수정 (7개):
- detail-verify-acc-sales.json: CAPTURE/READ 스텝 E2E_TEST_ 타겟팅
- vendor-management.json: 행 클릭 E2E_TEST_ 타겟팅
- batch-update-account-sales.json: CAPTURE/SELECT/VERIFY/RESTORE 스텝
- sales-management.json: DELETE fallback 경고 로깅

Phase 3 - E2E_TEST_ 접두사 표준화 (1개):
- employee-register.json: 홍길동→E2E_TEST_사원, EMP2026001→E2E_TEST_EMP001

테스트 결과: 175 PASS / 9 FAIL (숨겨진 실제 버그 5건 노출)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

edge-rapid-click-delete.json

@@ -50,7 +50,7 @@
       "id": 6,
       "name": "연타 후 상태 확인",
       "action": "evaluate",
-      "script": "(async()=>{const w=ms=>new Promise(r=>setTimeout(r,ms));const R={phase:'RAPID_DELETE_RESULT'};await w(2000);const dialogs=document.querySelectorAll('[role=\"dialog\"],[role=\"alertdialog\"],[aria-modal=\"true\"]');const visibleDialogs=Array.from(dialogs).filter(d=>d.offsetParent!==null);R.dialogCount=visibleDialogs.length;const toasts=document.querySelectorAll('[data-sonner-toast],[role=\"status\"],[class*=\"toast\"],[class*=\"Toast\"]');R.toastCount=toasts.length;if(toasts.length>0){R.toastTexts=Array.from(toasts).map(t=>t.innerText?.trim().substring(0,80)).filter(Boolean);}const hasError=document.querySelector('[class*=\"error\"],[class*=\"Error\"],[role=\"alert\"]');R.hasError=!!hasError;R.url=location.pathname+location.search;R.pageStable=!document.querySelector('.loading,.spinner,[class*=\"skeleton\"]');R.ok=true;R.info=R.dialogCount<=1&&!R.hasError?'✅ 연타 클릭 후 정상 상태':'⚠️ 연타 클릭 후 비정상 상태 (다중 모달/에러)';return JSON.stringify(R);})()",
+      "script": "(async()=>{const w=ms=>new Promise(r=>setTimeout(r,ms));const R={phase:'RAPID_DELETE_RESULT'};await w(2000);const dialogs=document.querySelectorAll('[role=\"dialog\"],[role=\"alertdialog\"],[aria-modal=\"true\"]');const visibleDialogs=Array.from(dialogs).filter(d=>d.offsetParent!==null);R.dialogCount=visibleDialogs.length;const toasts=document.querySelectorAll('[data-sonner-toast],[role=\"status\"],[class*=\"toast\"],[class*=\"Toast\"]');R.toastCount=toasts.length;if(toasts.length>0){R.toastTexts=Array.from(toasts).map(t=>t.innerText?.trim().substring(0,80)).filter(Boolean);}const hasError=document.querySelector('[class*=\"error\"],[class*=\"Error\"],[role=\"alert\"]');R.hasError=!!hasError;R.url=location.pathname+location.search;R.pageStable=!document.querySelector('.loading,.spinner,[class*=\"skeleton\"]');R.ok=R.dialogCount<=1&&!R.hasError;R.info=R.dialogCount<=1&&!R.hasError?'✅ 연타 클릭 후 정상 상태':'❌ 연타 클릭 후 비정상 상태 (다중 모달/에러)';return JSON.stringify(R);})()",
       "timeout": 10000,
       "phase": "RAPID_DELETE_RESULT"
     }