1.0.0

feat(release): v1.0.0 major release

- 🧠 Added professional PVT fatigue detection system.
- 📊 Implemented Z-Score based scientific fatigue analysis and 24H/7D trend charts.
- 🕒 Decoupled fatigue testing from focus timer; both now run in parallel.
- 🚀 Integrated standard OSS update system with GitHub notifications.
- 🍎 Refactored UI for latest macOS Squircle and vibrancy standards.
- 🛠 Optimized performance for large historical datasets (10k+ items).