fix(sidebar): MarketSidebar 빈 목록 상태 표시 (#74)

[ohhalim]

Summary

• 급상승/급하락 데이터가 없을 때 빈 화면 대신 "변동 데이터 없음" 메시지 표시
• MoverList 컴포넌트에 items.length === 0 분기 추가

배경

백엔드 0.0% 필터 적용 후 빈 배열이 내려오는 경우에 대한 방어 처리

Test plan

• 급상승/급하락 데이터 없을 때 "변동 데이터 없음" 표시 확인
• 데이터 있을 때 정상 목록 렌더링 확인

Closes #74

Summary by CodeRabbit

• Bug Fixes
  • Improved the market sidebar list view so it now shows a clear “변동 데이터 없음” message when there are no items, instead of displaying an empty list.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 58dca6af-3c60-425b-8033-e84943d13a93

📥 Commits

Reviewing files that changed from the base of the PR and between 3ab987e and bed0acd.

📒 Files selected for processing (1)

• src/components/layout/MarketSidebar.tsx

---

📝 Walkthrough

Walkthrough

The MoverList component in MarketSidebar.tsx now checks for an empty items array and renders a placeholder message ("변동 데이터 없음") instead of an empty list when there is no mover data to display.

Changes

Empty State Fix

Layer / File(s)	Summary
Empty items placeholder src/components/layout/MarketSidebar.tsx	MoverList adds an early-return branch when items.length === 0, rendering a gray placeholder message instead of an empty list.

Estimated code review effort: 1 (Trivial) | ~3 minutes

Related Issues

• #74: fix(sidebar): MarketSidebar 급상승/급하락 빈 목록 상태 표시 누락

Suggested labels: bug, frontend

Suggested reviewers: ohhalim

---

🐰 A rabbit hopped by the sidebar's edge,
Found an empty list on a data ledge,
"No changes today," it hummed with cheer,
A tiny message so the void feels less severe.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	제목이 MarketSidebar의 빈 목록 상태 표시 수정이라는 핵심 변경을 간결하게 잘 요약합니다.
Linked Issues check	✅ Passed	빈 배열일 때 "변동 데이터 없음"을 표시하는 분기가 추가되어 #74의 요구사항을 충족합니다.
Out of Scope Changes check	✅ Passed	변경은 빈 목록 처리에만 국한되어 있어 링크된 이슈 범위를 벗어난 수정이 보이지 않습니다.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/74/marketsidebar-empty-state

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}