[BOUNTY #476] Button component with loading spinners - Resubmit (scope fix)

[zhuzhushiwojia]

🎉 SolFoundry #476 - Button Component - 完整实现

✅ 实现内容

• 可复用 Button 组件，带 isLoading 属性
• 加载状态显示 spinner 图标并禁用按钮
• 加载时按钮文本变化（如 "Claiming..."）
• 防止重复点击提交
• 多种变体：primary, secondary, danger, success, outline
• 多种尺寸：sm, md, lg
• 支持深色和浅色主题
• 完整的 ARIA 无障碍属性
• 全面的测试覆盖（15 个测试用例）

📁 交付文件

文件	说明
frontend/src/components/common/Button.tsx	Button 组件实现
frontend/src/components/common/Button.test.tsx	单元测试（15 个测试用例）

✅ 验收标准

标准	状态
isLoading 属性	✅
加载状态 spinner	✅
禁用状态	✅
文本变化	✅
多种变体	✅
多种尺寸	✅
主题支持	✅
无障碍支持	✅
测试覆盖	✅

💰 收款信息

SOL Address: 9xsvaaYbVrRuMu6JbXq5wVY9tDAz5S6BFzmjBkUaM865

🔗 相关链接

• Issue: 🏭 Bounty T1: Add loading spinners to all buttons — 50,000 $FNDRY #476
• 测试：pnpm test -- Button

---

Note: This is a resubmission of PR #597. Previous PR included out-of-scope changes (README badges #488, CopyAddress integration #480). This PR contains ONLY the Button component implementation for #476.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: ASSERTIVE

Plan: Pro

Run ID: 6f31c0a3-377f-429a-a90e-47f577d1ebb3

📥 Commits

Reviewing files that changed from the base of the PR and between 72d63b0 and b70943d.

📒 Files selected for processing (2)

• frontend/src/components/common/Button.test.tsx
• frontend/src/components/common/Button.tsx

---

📝 Walkthrough

Walkthrough

Two new files were added: a reusable Button component with support for loading states, multiple styling variants (primary, secondary, danger, success, outline), sizing options (sm, md, lg), and optional left/right icons, along with a comprehensive test suite validating component rendering and behavior across various states and prop combinations.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

Suggested labels

approved

Suggested reviewers

• chronoeth-creator

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

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