v1.0.0

First stable release of behave-priority.

Features:

• Priority-based scenario ordering with @priority(N) and @feature-priority(N) tags
• Gherkin v6 Rule support with rule-level priority tags
• Fail-fast: stop_after_failures and stop_on_critical
• Cross-process fail-fast coordination via ParallelCoordinator
• Execution reports in text, JSON, and CSV formats
• Priority-bucketed time_saved estimation
• 390 tests (unit, integration, E2E) with 97% coverage
• Sphinx documentation with API reference and guides
• ruff and mypy --strict passing