feat: Add general IDE info to User-Agent for Tabby clients

[Sma1lboy]

This addresses the remaining part of the issue mentioned in #2581.

• Retrieve client info based on the client configuration during client initialization.

Example User-Agent format:

Node.js/v20.9.0 Visual-Studio-Code-desktop/1.91.1 TabbyML.vscode-tabby/1.8.0-dev

[Sma1lboy]

Should I do another PR for intellij? or I can put them together

This PR is waiting for #2766

[icycodes]

@Sma1lboy Thanks for your PR!
As we are using the standard user-agent header, it would be better to follow this format, so that we can extend a standard user-agent parser to parse it on the server-side.
My suggestions:
Node.js/v18.18.2 (Linux 5.15.0-117-generic; linux x64) TabbyAgent/1.8.0-dev Visual-Studio-Code/1.92.0 TabbyML.vscode-tabby/1.8.2

1. Node/Browser
   • For Node.js: Node.js/${nodejsVersion} (${osType} ${osRelease}; ${osPlatform} ${osArch})
   • For Browser, use value of: navigator.userAgent
2. tabby-agent: TabbyAgent/${tabbyAgentVersion}, like TabbyAgent/1.8.0-dev
3. IDE: ${ideName}/${ideVersion}, replace spaces with -, like Visual-Studio-Code/1.92.0
4. Tabby IDE extension/plugin: ${pluginName}/${pluginVersion}, like TabbyML.vscode-tabby/1.8.2

@wsxiaoys for review.

[icycodes]

About the implementation:

1. We can get the ide info at LSP initialization, so it is not required to pass it in each completion call. Please refer to protocol definition and implementation passing params to TabbyAgent class. It's not required to modify code in vscode/intellij plugin, all stuff will be done in tabby-agent.
2. Let's set the header user-agent at http client level.

[Sma1lboy]

Sure, I'll take a look tonight

[Sma1lboy]

@icycodes Thanks for your suggestions. I've realized that most of my previous code was focused on creating a parameter for ideInfo that could be transmitted by the client. It wasn't until I read the section of the code about lifecycle that I discovered this process had already been written there. :(
I deleted the unnecessary code and cleaned up the user agent format. By the way, if I want to get the current version of the user agent, do I need to read the package.json? I haven't found any code that stores "packagejson" context.

[icycodes]

if I want to get the current version of the user agent, do I need to read the package.json? I haven't found any code that stores "packagejson" context.

Simply import the "package.json" should be ok. Here is an example.