- Add typecheck script for TypeScript validation
- Add format and format:check scripts for code formatting
- Create comprehensive CHANGELOG documenting migration from Electron to Tauri
- Document all major changes, improvements, and migration notes for v3.0.0
- Bump version to 3.0.0 across all files
- Update Cargo.toml with proper package metadata
- Rename crate from 'app' to 'cc-switch'
- Use Rust edition 2024 with minimum rust-version 1.85.0
- Update library name to cc_switch_lib