feat(remote): add host info headers to HTTP requests

[chlins]

This pull request enhances the remote client by automatically adding host-specific metadata to HTTP headers for outgoing requests. The primary focus is to improve traceability and debugging by including information such as the hostname, local IP address, and CPU architecture in the request headers.

Enhancements to HTTP request headers:

• Added a new applyHostInfo function in client.go that injects the X-Hostname, X-Host-Ip, and X-Cpu-Arch headers into outgoing requests, using system calls to gather this information.
• Modified the New function to call applyHostInfo and ensure all requests include the new host metadata in their headers.
• Introduced new imports (net, os, runtime, and logrus) to support host information retrieval and logging.

[gemini-code-assist]

Summary of Changes

Hello @chlins, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request enhances the remote client by automatically embedding crucial host-specific metadata into HTTP request headers. By including the hostname, local IP address, and CPU architecture, the changes aim to provide better context for each request, thereby improving the overall traceability and simplifying the debugging process for remote operations.

Highlights

• Enhanced Traceability: This pull request introduces automatic injection of host-specific metadata into HTTP headers for all outgoing remote client requests, significantly improving traceability and debugging capabilities.
• Host Information Headers: New headers X-Hostname, X-Host-Ip, and X-Cpu-Arch are now added to requests, providing details about the originating host's hostname, local IP address, and CPU architecture.
• New Helper Functions: A new applyHostInfo function has been added to gather and apply host information, along with a getLocalIP helper function to retrieve the local IPv4 address.

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[gemini-code-assist]

Code Review

This pull request adds useful host information to HTTP request headers for better traceability. The implementation is straightforward. My review includes a suggestion to improve error handling, use more appropriate log levels, and follow modern best practices for custom HTTP header naming. I've also noted the current limitation of only discovering IPv4 addresses.

[gaius-qi]

LGTM