v0.5.0 🌈

Changes

• feat: Add token refresh lock and proactive refresh @kclif9 (#34)
• feat: Add optimistic local state updates after commands @kclif9 (#33)
• feat: Add command coalescing with debounce for concurrent zone commands @kclif9 (#32)
• feat: Add injectable websession support (HA platinum: inject-websession) @kclif9 (#31)
• Refactor tests to include type hints and improve readability @kclif9 (#22)
• Improve test coverage @kclif9 (#20)

🚀 Features

• Refactor OAuth2 Device Code Flow and State Management @kclif9 (#21)