Introduce first-time user onboarding and a navigable on-screen keyboard, plus persistent user storage via a bundled rusqlite database and Tauri API. Backend: add rusqlite dependency, DB initialization in tauri setup, schema migration/backfill for users, and two Tauri commands (get_first_user, create_user) with input sanitization and structured UserRecord. Frontend: add core/users.js (invoke + localStorage fallback), integrate user state initialization, add user setup view/styles and keyboard overlay (JS/CSS), wire views and navigation to show onboarding when needed, and update lock view behavior to coordinate onboarding and passkey flow. Also add @tauri-apps/api dependency and update package/Cargo lock files accordingly.
Initialize the Nebula OS Tauri project: add frontend (src/) with HTML, JS, CSS and SVG assets, plus a sample greet UI. Add src-tauri Rust backend (Cargo.toml, build.rs, main/lib) with a greeting command, tauri.conf.json, capability schema and platform icons. Add package.json (dev dependency on @tauri-apps/cli), .gitignore files and VSCode recommended extensions. Expand README with project vision, architecture and phase roadmap to document the Windows-first development plan.
andrew