This commit introduces two new commands to the `borg` CLI:
- `borg compile`: Compiles a `Borgfile` into a "Terminal Isolation
Matrix" (`.matrix` file). The `Borgfile` format is a simple text file
with `ADD <src> <dest>` instructions.
- `borg run`: Executes a `.matrix` file using `runc`. The command
unpacks the matrix into a temporary directory and then executes `runc
run`.
Tests have been added for both commands, mocking the `runc` execution
to avoid environment dependencies.
This commit introduces a significant refactoring of the `cmd` package to improve testability and increases test coverage across the application.
Key changes include:
- Refactored Cobra commands to use `RunE` for better error handling and testing.
- Extracted business logic from command handlers into separate, testable functions.
- Added comprehensive unit tests for the `cmd`, `compress`, `github`, `logger`, and `pwa` packages.
- Added tests for missing command-line arguments, as requested.
- Implemented the `borg all` command to clone all public repositories for a GitHub user or organization.
- Restored and improved the `collect pwa` functionality.
- Removed duplicate code and fixed various bugs.
