fix: ESLint 오류 수정 - 사용하지 않는 변수들에 underscore prefix 추가

- AddTransactionButton.tsx: useEffect import 제거
- BudgetProgressCard.tsx: localBudgetData를 _localBudgetData로 변경
- Header.tsx: isMobile을 _isMobile로 변경
- RecentTransactionsSection.tsx: isDeleting을 _isDeleting로 변경
- TransactionCard.tsx: cn import 제거
- ExpenseForm.tsx: useState import 제거
- cacheStrategies.ts: QueryClient, Transaction import 제거
- Analytics.tsx: Separator import 제거, 미사용 변수들에 underscore prefix 추가
- Index.tsx: useMemo import 제거
- Login.tsx: setLoginError를 _setLoginError로 변경
- Register.tsx: useEffect dependency 수정 및 useCallback 추가
- Settings.tsx: toast, handleClick에 underscore prefix 추가
- authStore.ts: setError, setAppwriteInitialized에 underscore prefix 추가
- budgetStore.ts: ranges를 _ranges로 변경
- BudgetProgressCard.test.tsx: waitFor import 제거

🤖 Generated with [Claude Code](https://claude.ai/code)

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

.github/workflows/pr-deployment-status.yml

@@ -0,0 +1,52 @@
+name: PR Deployment Status
+
+on:
+  deployment_status:
+
+jobs:
+  deployment-status:
+    runs-on: ubuntu-latest
+    if: github.event.deployment_status.state == 'success' || github.event.deployment_status.state == 'failure'
+    
+    steps:
+      - name: Add deployment comment to PR
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const { deployment_status } = context.payload;
+            const state = deployment_status.state;
+            const targetUrl = deployment_status.target_url;
+            const environment = deployment_status.deployment.environment;
+            
+            let emoji = state === 'success' ? '✅' : '❌';
+            let message = state === 'success' ? '성공' : '실패';
+            
+            const comment = `## ${emoji} 배포 ${message}
+            
+            **환경**: \`${environment}\`
+            **상태**: ${message}
+            **URL**: ${targetUrl ? `[배포 확인하기](${targetUrl})` : '배포 URL 없음'}
+            **시간**: ${new Date().toLocaleString('ko-KR', { timeZone: 'Asia/Seoul' })}
+            
+            ${state === 'success' 
+              ? '🎉 배포가 성공적으로 완료되었습니다! 위 링크에서 확인해보세요.' 
+              : '⚠️ 배포 중 문제가 발생했습니다. Vercel 대시보드에서 로그를 확인해주세요.'}`;
+            
+            // PR과 연관된 경우에만 코멘트 추가
+            if (context.payload.deployment_status.deployment.ref !== 'main') {
+              const { data: prs } = await github.rest.pulls.list({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                head: `${context.repo.owner}:${context.payload.deployment_status.deployment.ref}`,
+                state: 'open'
+              });
+              
+              if (prs.length > 0) {
+                await github.rest.issues.createComment({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  issue_number: prs[0].number,
+                  body: comment
+                });
+              }
+            }