Remove unreliable "init" command

The CLI tool includes an "init" command to create a default mycoder.config.js file, but this command has proven to be unreliable in practice. This issue proposes removing the "init" command entirely, along with the related function that creates the initial configuration file.

Tasks

• Remove the "init" command from the CLI
• Remove the createDefaultConfigFile function (or mark it as deprecated if other parts of the code depend on it)
• Update any related documentation

Why?

Removing this unreliable feature will improve the overall stability and user experience of the CLI tool. Users can create configuration files manually or through other means as needed.