chore(commitlint): increase body-max-line-length to 500

Remove outdated documentation files related to CI/CD, ESLint, TypeScript, and refactoring. These files are no longer relevant due to recent updates in the project's configuration and practices. The commitlint configuration is updated to allow longer commit message bodies, accommodating more detailed explanations when necessary. This change supports better documentation of complex changes directly within commit messages.

Author: kzndotsh