- Add .gitkeep files to ensure all essential directories are tracked by git
- Update .gitignore to allow .gitkeep files in logs/ and docs/generated/
- Preserve directory structure for Ralph project template system
- Directories added: src/, examples/, specs/stdlib/, templates/specs/,
logs/, docs/generated/
This ensures the complete Ralph project structure is available when
cloning the repository, even before any actual project files are created.
