Refactor and Improve CLI Functionality

[wenwu35]

PR Summary:

This PR introduces several enhancements and refactors to the CLI tools dbt_column_lineage_direct and dbt_column_lineage_recursive to improve usability, error handling, and output clarity.

dbt_column_lineage_direct:

• Removes the --show-ui flag. The output is now handled consistently via logging.
• Improves the scanning process by providing progress updates, indicating the total number of models scanned

dbt_column_lineage_recursive:

• Modifies the behavior of multiple match display. It now only shows multiple match suggestions when an exact node name match is found, reducing unnecessary verbosity.
• Adds alerts or warnings to the console when a specified model or column is not found, providing better feedback to the user.
• Removes self-referencing relationships from the Mermaid diagrams generated, resulting in cleaner and more accurate visualizations.

These changes collectively enhance the user experience by providing more informative output, clearer error messages, and more precise lineage analysis.