Update to docs

DesktopApplicationDevelopmentGuide.md

@@ -25,12 +25,12 @@ Run the appropriate build script for your platform:
 
 **Linux/macOS:**
 ```bash
-./build-tauri-jlink.sh
+./scripts/build-tauri-jlink.sh
 ```
 
 **Windows:**
 ```cmd
-build-tauri-jlink.bat
+scripts\build-tauri-jlink.bat
 ```
 
 ### 2. Build Tauri Application

DeveloperGuide.md

@@ -32,6 +32,12 @@ This guide focuses on developing for Stirling 2.0, including both the React fron
 - Docker for containerization
 - Gradle for build management
 
+**Desktop Application (Tauri):**
+- Tauri for cross-platform desktop app packaging
+- Rust backend for system integration
+- PDF file association support
+- Self-contained JRE bundling with JLink
+
 **Legacy (reference only during development):**
 - Thymeleaf templates (being completely replaced in 2.0)
 
@@ -44,6 +50,8 @@ This guide focuses on developing for Stirling 2.0, including both the React fron
 - Java JDK 17 or later (JDK 21 recommended)
 - Node.js 18+ and npm (required for frontend development)
 - Gradle 7.0 or later (Included within the repo)
+- Rust and Cargo (required for Tauri desktop app development)
+- Tauri CLI (install with `cargo install tauri-cli`)
 
 ### Setup Steps
 
@@ -95,6 +103,14 @@ Stirling 2.0 uses client-side file storage:
 ### Legacy Code Reference
 The existing Thymeleaf templates remain in the codebase during development as reference material but will be completely removed for the 2.0 release.
 
+### Tauri Desktop App Development
+Stirling-PDF can be packaged as a cross-platform desktop application using Tauri with PDF file association support and bundled JRE:
+
+**Quick Start:**
+1. **Development/Testing**: `cargo tauri dev --no-watch -- -- "path/to/test.pdf"`
+2. **Building**: See [DesktopApplicationDevelopmentGuide.md](DesktopApplicationDevelopmentGuide.md) for complete build instructions
+3. **Features**: File associations, self-contained JRE, cross-platform support
+
 ## 5. Project Structure
 
 ```bash
@@ -109,6 +125,12 @@ Stirling-PDF/
 │   │   ├── services/      # API and utility services
 │   │   ├── types/         # TypeScript type definitions
 │   │   └── utils/         # Utility functions
+│   ├── src-tauri/         # Tauri desktop app configuration
+│   │   ├── src/           # Rust backend code
+│   │   ├── libs/          # JAR files (generated by build scripts)
+│   │   ├── runtime/       # Bundled JRE (generated by build scripts)
+│   │   ├── Cargo.toml     # Rust dependencies
+│   │   └── tauri.conf.json # Tauri configuration
 │   ├── public/
 │   │   └── locales/       # Internationalization files (JSON)
 │   ├── package.json       # Frontend dependencies