Add blitz feature for Dioxus Native rendering support

Add an orthogonal `blitz` feature flag that switches the rendering
framework from dioxus webview to dioxus-native (Blitz). Can be combined
with `desktop` or `mobile` features. Also bumps rfd to ^0.17.0 (upstream
git moved forward), removes stale gui-level [patch.crates-io] section,
and adds xdotool to the Dockerfile for libxdo (blitz-shell dependency).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

gui/Cargo.toml

@@ -68,6 +68,7 @@ etcetera = { version = "0.10.0", optional = true }
 # Base Dependencies
 # ================
 dioxus = { version = "0.7.2" }
+dioxus-native = { git = "https://github.com/DioxusLabs/blitz", rev = "e64a3d8", features = ["prelude"], optional = true }
 once_cell = "1.19.0"
 asynchronous-codec = { workspace = true }
 futures = "^0.3.30"
@@ -106,7 +107,7 @@ crossbeam = "0.8.4"
 # ====================
 # rfd only supports windows, macos, linux, and wasm32. No support for Android or iOS
 [target.'cfg(any(target_os = "linux", target_os = "windows", target_os = "macos", target_arch = "wasm32"))'.dependencies]
-rfd = { git = "https://github.com/PolyMeilex/rfd.git", version = "^0.16.0", default-features = false, optional = true }
+rfd = { git = "https://github.com/PolyMeilex/rfd.git", version = "^0.17.0", default-features = false, optional = true }
 
 # Android dependencies for requesting permissions
 [target.'cfg(target_os = "android")'.dependencies]
@@ -114,12 +115,6 @@ android-permissions = "0.1.2"
 jni = "0.21.1"
 ndk-context = "0.1.1"
 
-[patch.crates-io]
-tract-hir = "=0.12.4"
-tract-core = "=0.12.4"
-tract-onnx = "=0.12.4"
-tract-pulse = "=0.12.4"
-
 [features]
 web = [
   "dioxus/web",
@@ -155,3 +150,4 @@ mobile = [
   "cpal",
   "dasp_ring_buffer",
 ]
+blitz = ["dioxus-native"]