feat(ProgressBar): add new ProgressBar component

[MaxLee-dev]

Related Issues

Description of Changes

ProgressBar 컴포넌트를 새로 추가했다.

packages/core

• progress-bar/ 신규: Root / Label / Value / Track / Indicator / Status 6개 파트
• type prop: default(blue.200 → background.primary), warning(orange.200 → background.warning) 좌→우 그라데이션
• size prop: sm(8px) / md(12px) / lg(16px). 라벨·값 타이포는 size와 무관하게 고정(Label body2, Value heading6)
• value={null}이면 indeterminate 상태
• utils/warn.ts 신규: min/max 값이 잘못됐을 때 개발 환경에서만 경고

apps/website

• progress-bar.mdx 문서 신규 (Property / Examples / Accessibility / Props Table)
• 데모 6종: default, type, size, value-text, indeterminate, status
• progress-bar-*.json props 스펙 6개 추출

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Checklist

• The PR title follows the Conventional Commits convention. (e.g., feat, fix, docs, style, refactor, test, chore)
• I have added tests for my changes.
• I have updated the Storybook or relevant documentation.
• I have added a changeset for this change. (e.g., for any changes that affect users, such as component prop changes or new features).
• I have performed a self-code review.
• I have followed the project's coding conventions and component patterns.

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⚠️ No Changeset found

Latest commit: a60ac13

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Project	Deployment	Actions	Updated (UTC)
vapor-ui	Ready	Preview	Aug 27, 2026 7:13am

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✅ All tests passed!

Tests	Passed	Failed	Duration	Report
172	172	0	1m 40s	Open report ↗︎

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