✨ feat: support configuring multiple agent index urls

[LeoQuote]

fix #1559

💻 变更类型 | Change Type

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

🔀 变更说明 | Description of Change

新增了多个 market 中心的支持, 支持方式如下:

接口层面, market index api 会尝试将 AGENTS_INDEX_URL 用逗号分开, 然后逐个请求, 最后将其合并( 不去重 )

market api 会接受新的参数 ,marketId, 使用 identifier, marketId 这两个参数, 可以前往不同的 market 获取相关信息, 在获取到信息后, 将 marketId 再重新注入到返回体内返回给前端

UI 层面, 在点击卡片时, 会set 两个 store, currentIdentifier , currentMarketId, 最后关联到 url 上, 即可请求到正确的资源

新增多个 plugin 中心的支持, 更改较少, 仅需更改 api, 在后端分别请求两个 index 即可.

验证方式:
设置环境变量

AGENTS_INDEX_URL=https://chat-agents.lobehub.com,https://chat-agents.lobehub.com
PLUGINS_INDEX_URL=https://chat-plugins.lobehub.com,https://chat-plugins.lobehub.com

启动服务, 观察到有重复的两波 agent 和插件, 符合预期

📝 补充信息 | Additional Information

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.58%. Comparing base (04d8e53) to head (dfe3dfb).
Report is 70 commits behind head on main.

❗ Current head dfe3dfb differs from pull request most recent head 6b2aea3. Consider uploading reports for the commit 6b2aea3 to get more accurate results

Additional details and impacted files

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##             main    #1648   +/-   ##
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  Coverage   92.57%   92.58%           
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  Files         239      239           
  Lines       13066    13066           
  Branches     1562     1562           
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+ Hits        12096    12097    +1     
+ Misses        970      969    -1     

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[arvinxx]

marketId 是不是应该也支持字符串？这样的话可以实现用 id 来控制，以及后续让用户手动添加不同的助手市场？

[lobehubbot]

Bot detected the issue body's language is not English, translate it automatically. 👯👭🏻🧑‍🤝‍🧑👫🧑🏿‍🤝‍🧑🏻👩🏾‍🤝‍👨🏿👬🏿

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Should marketId also support strings? In this case, it is possible to use id to control, and then allow users to manually add different assistant markets?

[LeoQuote]

配置不太好做，这个设计是用逗号分隔，用index 做market id，如果想加入名字，需要改成字典配置，有点麻烦了

[lobehubbot]

Bot detected the issue body's language is not English, translate it automatically. 👯👭🏻🧑‍🤝‍🧑👫🧑🏿‍🤝‍🧑🏻👩🏾‍🤝‍👨🏿👬🏿

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The configuration is not easy to do. This design uses commas to separate and use index as the market ID. If you want to add a name, you need to change it to a dictionary configuration, which is a bit troublesome.