feat: migrate primary UI to QML

.github/workflows/qml-migration.yml

@@ -0,0 +1,50 @@
+name: QML Migration Check
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+      - feat/qml-ui-migration
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: ubuntu-24.04
+    timeout-minutes: 20
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install native dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y \
+            build-essential \
+            cmake \
+            ninja-build \
+            pkg-config \
+            libgtk-4-dev \
+            libhidapi-dev \
+            libudev-dev \
+            qt6-base-dev \
+            qt6-declarative-dev \
+            qt6-declarative-dev-tools \
+            qt6-tools-dev \
+            qml6-module-qtquick \
+            qml6-module-qtquick-controls \
+            qml6-module-qtquick-layouts \
+            lua5.4
+
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Test
+        run: cargo test --locked
+
+      - name: Build
+        run: cargo build --locked