chore: remove outdated documentation and archived files

Remove several archived markdown files and scripts from the .archive directory. These files, including COG_STANDARDS.md, EMBED_STANDARDS.md, and various Python scripts, are no longer relevant to the current project structure or development practices. This cleanup helps reduce clutter in the repository, making it easier to maintain and navigate. The removed files were either outdated or replaced by more current documentation and implementations.

chore: remove unused archived files and update .gitignore

Remove several unused files from the .archive directory to clean up
the repository and reduce clutter. These files include various Python
scripts and test files that are no longer needed. The .gitignore file
is updated to ignore the entire .archive directory, preventing any
future additions to this directory from being tracked.

Cleaning up the repository by removing obsolete files helps maintain
a more organized codebase and reduces potential confusion for
developers working on the project. Ignoring the .archive directory
ensures that any temporary or backup files stored there do not
accidentally get committed.

Author: kzndotsh