💄 style: improve open router tools calling metadata

[arvinxx]

💻 变更类型 | Change Type

• ✨ feat
• 🐛 fix
• ♻️ refactor
• 💄 style
• 👷 build
• ⚡️ perf
• 📝 docs
• 🔨 chore

🔀 变更说明 | Description of Change

• fix [Bug] Openrouter模型不支持函数 #3269
• fix [Bug] openrouter api的模型无法支持fc #3346

📝 补充信息 | Additional Information

OpenRouter 的 Claude Tools calling 和 OpenAI 的兼容实现非常有问题，tool_calls 的 index 直接从 1 开始了，导致无法正常使用，尝试做了兼容，但兼容不起来。

[
        {
          id: 'gen-Bx4R8TCbr4GElWZJtE30XGDQyoYW',
          model: 'anthropic/claude-3.5-sonnet',
          object: 'chat.completion.chunk',
          created: 1725817213,
          choices: [
            {
              index: 0,
              delta: {
                role: 'assistant',
                content:
                  '为了回答您关于杭州天气的问题，我需要使用实时天气查询工具来获取最新的天气信息。让我为您查询一下。',
              },
              finish_reason: null,
              logprobs: null,
            },
          ],
        },
        {
          id: 'gen-Bx4R8TCbr4GElWZJtE30XGDQyoYW',
          model: 'anthropic/claude-3.5-sonnet',
          object: 'chat.completion.chunk',
          created: 1725817213,
          choices: [
            {
              delta: {
                role: 'assistant',
                content: null,
                tool_calls: [
                  {
                    id: 'toolu_01M368ZnDFfJwaiVGL4evqhn',
                    index: 1,
                    type: 'function',
                    function: { name: 'realtime-weather____fetchCurrentWeather', arguments: '' },
                  },
                ],
              },
              index: 0,
            },
          ],
        },
        {
          id: 'gen-Bx4R8TCbr4GElWZJtE30XGDQyoYW',
          model: 'anthropic/claude-3.5-sonnet',
          object: 'chat.completion.chunk',
          created: 1725817213,
          choices: [
            {
              delta: {
                role: 'assistant',
                content: null,
                tool_calls: [{ index: 1, type: 'function', function: { arguments: '{"city"' } }],
              },
              index: 0,
            },
          ],
        },
        {
          id: 'gen-Bx4R8TCbr4GElWZJtE30XGDQyoYW',
          model: 'anthropic/claude-3.5-sonnet',
          object: 'chat.completion.chunk',
          created: 1725817213,
          choices: [
            {
              delta: {
                role: 'assistant',
                content: null,
                tool_calls: [{ index: 1, type: 'function', function: { arguments: ':"杭州"}' } }],
              },
              index: 0,
            },
          ],
        },
        {
          id: 'gen-Bx4R8TCbr4GElWZJtE30XGDQyoYW',
          model: 'anthropic/claude-3.5-sonnet',
          object: 'chat.completion.chunk',
          created: 1725817213,
          choices: [
            { index: 0, delta: { role: 'assistant', content: '' }, finish_reason: 'tool_calls' },
          ],
        },
        {
          id: 'gen-Bx4R8TCbr4GElWZJtE30XGDQyoYW',
          model: 'anthropic/claude-3.5-sonnet',
          object: 'chat.completion.chunk',
          created: 1725817213,
          choices: [
            {
              index: 0,
              delta: { role: 'assistant', content: '' },
              finish_reason: null,
              logprobs: null,
            },
          ],
          usage: { prompt_tokens: 474, completion_tokens: 114, total_tokens: 588 },
        },
      ]

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[lobehubbot]

👍 @arvinxx

Thank you for raising your pull request and contributing to our Community
Please make sure you have followed our contributing guidelines. We will review it as soon as possible.
If you encounter any problems, please feel free to connect with us.
非常感谢您提出拉取请求并为我们的社区做出贡献，请确保您已经遵循了我们的贡献指南，我们会尽快审查它。
如果您遇到任何问题，请随时与我们联系。

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.16%. Comparing base (d3fabdc) to head (d8af127).
Report is 13 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3835      +/-   ##
==========================================
+ Coverage   92.08%   92.16%   +0.07%     
==========================================
  Files         460      466       +6     
  Lines       31709    32045     +336     
  Branches     2004     3229    +1225     
==========================================
+ Hits        29198    29533     +335     
- Misses       2511     2512       +1     

Flag	Coverage Δ
app	92.16% <100.00%> (+0.07%)	⬆️
server	97.36% <ø> (ø)

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[lobehubbot]

❤️ Great PR @arvinxx ❤️

The growth of project is inseparable from user feedback and contribution, thanks for your contribution! If you are interesting with the lobehub developer community, please join our discord and then dm @arvinxx or @canisminor1990. They will invite you to our private developer channel. We are talking about the lobe-chat development or sharing ai newsletter around the world.
项目的成长离不开用户反馈和贡献，感谢您的贡献! 如果您对 LobeHub 开发者社区感兴趣，请加入我们的 discord，然后私信 @arvinxx 或 @canisminor1990。他们会邀请您加入我们的私密开发者频道。我们将会讨论关于 Lobe Chat 的开发，分享和讨论全球范围内的 AI 消息。

[lobehubbot]

🎉 This PR is included in version 1.19.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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