…rage

This commit resolves the race condition in concurrent await scenarios and
adds comprehensive multi-framework async support with enhanced test coverage.

## Key Changes:

**ReAwaitable Enhancements:**
- Resolve race condition in concurrent await scenarios by properly handling asyncio locks and coroutine state management
- Add full support for trio and anyio async frameworks beyond asyncio
- Implement intelligent framework detection with graceful fallbacks (asyncio → trio → anyio → threading)
- Add comprehensive DEBUG-level logging for lock fallback scenarios to aid troubleshooting
- Achieve thread-safe concurrent await support across all major Python async frameworks
- Refactor implementation to reduce complexity and improve maintainability

**Test Infrastructure:**
- Achieve 100% branch coverage with comprehensive test cases
- Add extensive tests for all framework scenarios and edge cases
- Add comprehensive tests for logging functionality across all framework scenarios
- Refactor tests into focused helper functions for better maintainability
- Add safe private attribute access helpers to improve test reliability
- Enable pytest-asyncio auto mode for better test infrastructure

**CI/Build Improvements:**
- Update CI workflow to use correct Poetry installation path (.local/bin)
- Fix mypy plugin compatibility and test infrastructure for CI
- Add pytest-asyncio dependency for async test support

**Documentation:**
- Update documentation to reflect enhanced framework compatibility
- Add detailed docstring documenting framework precedence order
- Add changelog entry for the bug fix

This addresses issue dry-python#2108 where trio/anyio users experienced
"coroutine is being awaited already" errors with concurrent awaits.
The implementation now provides thread-safe concurrent await support
across all major Python async frameworks.