- Updated file tracking to include `.dev.vars` alongside `.env` and `.env.*`.
- Improved pre-commit hook to block plaintext secret files, including `.dev.vars`.
- Added `clear` command to remove plaintext secret files from the current directory and workspaces.
- Enhanced tests to cover new functionality for `.dev.vars` and the `clear` command.
- Updated documentation to reflect changes in tracked files and command usage.
