- Added `dep-audit`, `license-check`, `audit`, `validate-all`, and `check` targets for security and quality checks.
- Updated `.PHONY` to include new targets.
- Enhanced `help` command documentation with descriptions of the new commands.
- Updated `ARCHITECTURE.md`, `CLAUDE.md`, and `uv.lock` to reflect related changes. Upgraded dependencies where necessary.
- Deleted `I18N_IMPLEMENTATION_PLAN.md` and `PROJECT_PROGRESS.md` to declutter the repository.
- These documents were finalized, no longer relevant, and superseded by implemented features and external references.
- Introduced `CONTRIBUTING.md` to provide detailed guidelines for contributing, covering coding standards, testing, commit messages, and the pull request process.
- Added a new `README.md` to document the project setup, features, tech stack, testing infrastructure, and deployment instructions.
- Improved accessibility and structure of developer resources for better onboarding and collaboration.
