v0.1.0

Initial release.

• AbstractTenantAPIKey base model: SHA-256 hashed key storage, constant-time verification, scope checks (has_scope) supporting exact matches, global "*", and namespaced "orders:*" wildcards.
• TenantAPIKeyAuthentication and HasAPIKeyScope for Django REST Framework.
• TenantAPIKeyAdmin for the Django admin — key shown once on creation, masked afterward.
• Framework-agnostic get_api_key_model() / generate_api_key() for building custom integrations (e.g. Django Ninja).
• Tested against Django 4.2 and 5.2 on Python 3.10-3.12. 100% test coverage, mypy --strict, ruff clean.