fix(auth): modify AI interface retry logic

[buzz77]

根据代码更改，这里是PR描述：

---

📝 Description | 描述

English: Modified AI API retry logic to retry on all errors instead of only specific retryable errors. The client will now attempt up to 4 total calls (1 initial + 3 retries) regardless of the error type returned by the AI API.

中文： 修改了AI API的重试逻辑，现在无论AI接口返回什么错误都会重试，而不仅仅是特定的可重试错误。客户端现在会尝试最多4次调用（1次初始调用 + 3次重试）。

---

🎯 Type of Change | 变更类型

• 🐛 Bug fix | 修复 Bug
• ✨ New feature | 新功能
• 💥 Breaking change | 破坏性变更
• 📝 Documentation update | 文档更新
• 🎨 Code style update | 代码样式更新
• ♻️ Refactoring | 重构
• ⚡ Performance improvement | 性能优化
• ✅ Test update | 测试更新
• 🔧 Build/config change | 构建/配置变更
• 🔒 Security fix | 安全修复

---

🔗 Related Issues | 相关 Issue

• Closes # | 关闭 #
• Related to # | 相关 #

---

📋 Changes Made | 具体变更

English:

• Modified isRetryableError() method to always return true, removing error type filtering
• Changed MaxRetryTimes from 3 to 4 to ensure exactly 3 retries (4 total attempts)
• Affects both CallWithMessages() and CallWithRequest() methods

中文：

• 修改 isRetryableError() 方法直接返回 true，移除了错误类型过滤逻辑
• 将 MaxRetryTimes 从 3 改为 4，确保重试3次（总共4次调用）
• 影响两个方法：CallWithMessages() 和 CallWithRequest()

---

🧪 Testing | 测试

• Tested locally | 本地测试通过
• Tests pass | 测试通过
• Verified no existing functionality broke | 确认没有破坏现有功能

---

✅ Checklist | 检查清单

Code Quality | 代码质量

• Code follows project style | 代码遵循项目风格
• Self-review completed | 已完成代码自查
• Comments added for complex logic | 已添加必要注释

Documentation | 文档

• Updated relevant documentation | 已更新相关文档

Git

• Commits follow conventional format | 提交遵循 Conventional Commits 格式
• Rebased on latest dev branch | 已 rebase 到最新 dev 分支
• No merge conflicts | 无合并冲突

---

📚 Additional Notes | 补充说明

English: The retry delay follows an exponential backoff pattern: 2s, 4s, 6s for the 1st, 2nd, and 3rd retry respectively. This change makes the retry behavior more aggressive to handle transient API failures more reliably.

中文： 重试延迟采用递增模式：第1次重试等待2秒，第2次重试等待4秒，第3次重试等待6秒。此变更使重试行为更加积极，以更可靠地处理临时的API故障。

---

By submitting this PR, I confirm | 提交此 PR，我确认：

• I have read the Contributing Guidelines | 已阅读贡献指南
• I agree to the Code of Conduct | 同意行为准则
• My contribution is licensed under AGPL-3.0 | 贡献遵循 AGPL-3.0 许可证

---

🌟 Thank you for your contribution! | 感谢你的贡献！

[cla-assistant]

All committers have signed the CLA.