Add generate:latte-bundle script and remove obsolete project files

- Introduced a new script "generate:latte-bundle" in package.json for generating Latte bundles.
- Deleted unused files including .gitignore, research documentation, and various configuration files to streamline the project structure.
- Removed legacy files that are no longer relevant to the current development workflow.

These changes aim to enhance the development experience and maintain a cleaner project environment.

Author: godudy