feat: update to burn 0.14.0 with vulkan support and refactor frontend to egui

- Updated burn framework dependencies from 0.21.0-pre.2 to 0.14.0
- Added optional vulkan backend support with burn-wgpu feature
- Replaced React/TypeScript frontend with native Rust egui frontend
- Added Vulkan GPU support documentation and setup instructions
- Updated README with new architecture and backend configuration
- Refactored GPU backend detection and reporting to include backend type
- Added vulkan-backend feature flag for conditional compilation
- Updated dependency installation instructions for Vulkan support

Cargo.toml

@@ -23,9 +23,17 @@ egui_extras = "0.24"
 reqwest = { version = "0.11", features = ["json"] }
 image = "0.24"
 
-# For model loading capabilities
-burn = { version = "0.21.0-pre.2", default-features = false }
-burn-tch = { version = "0.21.0-pre.2" }  # for torch backend
+# For model loading capabilities - using burn framework
+burn = { version = "0.14.0", default-features = false }
+burn-tch = { version = "0.14.0" }
+burn-wgpu = { version = "0.14.0", features = ["vulkan"], optional = true }
+tch = "0.15.0"
+
+# Stable Diffusion using burn
+stablediffusion = { path = "../../../stable-diffusion-burn" }
+
+[features]
+vulkan-backend = ["burn-wgpu"]
 
 [dev-dependencies]
 tokio-test = "0.4"