feat: Transform to Tauri desktop app

- Initialize Tauri v2 project with Rust backend
- Restructure project: move source files to src/ directory
- Add Tauri configuration for Windows, macOS, and Linux builds
- Update Vite config for Tauri development workflow
- Add file system and dialog permissions for native features
- Update package.json with desktop build scripts
- Update tsconfig.json paths for new src structure
- Add Tauri and desktop badges to README
- Document desktop build process and architecture

src-tauri/Cargo.toml

@@ -0,0 +1,25 @@
+[package]
+name = "typogenie"
+version = "1.0.0"
+description = "TypoGenie - Markdown to Word document converter"
+authors = ["TypoGenie Contributors"]
+license = "MIT"
+repository = "https://git.lashman.live/lashman/typogenie"
+edition = "2021"
+rust-version = "1.77.2"
+
+[lib]
+name = "app_lib"
+crate-type = ["staticlib", "cdylib", "rlib"]
+
+[build-dependencies]
+tauri-build = { version = "2.5.3" }
+
+[dependencies]
+serde_json = "1.0"
+serde = { version = "1.0", features = ["derive"] }
+log = "0.4"
+tauri = { version = "2.9.5" }
+tauri-plugin-log = "2"
+tauri-plugin-dialog = "2"
+tauri-plugin-fs = "2"