refactor: overhaul documentation, assets, and core git logic

[thomas-vilte]

Description

I have performed a comprehensive refactor of the project's documentation and internal logic. This includes a complete rewrite of the README, COMMANDS, and CONTRIBUTING guides in both English and Spanish to provide a more cohesive and personal tone. Additionally, I improved the internal git service to handle file staging more robustly using the -A flag and corrected i18n template placeholders that were causing rendering issues. I also removed the GoReleaser configuration as part of an infrastructure cleanup.

Fixes # (issue)

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update

How Has This Been Tested?

I manually verified the CLI execution flow and the updated git staging logic.

• Unit tests
• Integration tests
• Manual test: Verified the suggest command flow and the updated git add -A behavior. Checked i18n string rendering for error messages.

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

Closes #67