Enhancements to Debugging and Installation Process

[babarot]

WHAT

1. Improved --debug flag behavior

   • Introduced two modes:
     • full: Displays the entire log history before following new log entries in real-time.
     • live: Starts from the latest log entry and follows new logs in real-time.
   • Adjusted CLI implementation to support this change.

2. Refactored installation script (hack/install)

   • Improved handling of binary downloads with clearer error messages.
   • Introduced a structured installation method (binary vs. source build).
   • Replaced go install with git clone + make install for a more reliable build process.

3. Refactored CLI options

   • Grouped --version and --debug under MetaOption for better organization.

4. Other improvements

   • Updated the official gomi URL to https://gomi.dev.
   • Improved log handling logic for better debugging experience.

WHY

• To provide more precise debugging options.
• To enhance error handling and improve user experience in installation.
• To improve code maintainability and clarity.