Remove obsolete documentation and configuration files

Commit notes

- Deleted various markdown files related to deployment, authentication, and integration guides that are no longer relevant to the current project structure. - Removed outdated configuration files and environment examples to streamline the codebase and reduce clutter. - Updated `package.json` and `pnpm-workspace.yaml` to reflect changes in workspace structure, removing references to deleted components.

This commit aims to clean up the repository by eliminating unnecessary files and ensuring that the remaining documentation is relevant and up-to-date.