Add ARM qa dockerfile and script

Allows testing ARM-based linux QA for system-specific issues

qa/arm64/Dockerfile

@@ -0,0 +1,54 @@
+FROM arm64v8/debian:trixie
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    cmake \
+    ninja-build \
+    pkg-config \
+    git \
+    ca-certificates \
+    libwxgtk3.2-dev \
+    libwxgtk-webview3.2-dev \
+    libboost-all-dev \
+    libglew-dev \
+    libcairo2-dev \
+    libcurl4-openssl-dev \
+    libgit2-dev \
+    libsecret-1-dev \
+    libsqlite3-dev \
+    unixodbc-dev \
+    swig \
+    python3-dev \
+    python3-wxgtk4.0 \
+    libprotobuf-dev \
+    protobuf-compiler \
+    libngspice0-dev \
+    ngspice \
+    libocct-data-exchange-dev \
+    libocct-draw-dev \
+    libocct-foundation-dev \
+    libocct-modeling-algorithms-dev \
+    libocct-modeling-data-dev \
+    libocct-ocaf-dev \
+    libocct-visualization-dev \
+    nlohmann-json3-dev \
+    libharfbuzz-dev \
+    libfontconfig1-dev \
+    libfreetype-dev \
+    libglib2.0-dev \
+    libnng-dev \
+    libglm-dev \
+    libspnav-dev \
+    libegl-dev \
+    libgles-dev \
+    libpixman-1-dev \
+    libgtk-3-dev \
+    libpoppler-glib-dev \
+    libwayland-dev \
+    wayland-protocols \
+    ccache \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /src

qa/arm64/build-and-test.sh

@@ -0,0 +1,103 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+SRC_DIR="$(cd "$SCRIPT_DIR/../.." && pwd)"
+IMAGE_NAME="kicad-arm64-qa"
+CONTAINER_BUILD_DIR="/src/build/arm64"
+
+# QA test names matching CI configuration (skip python/cli which need wxPython)
+QA_TESTS=(kimath sexpr common eeschema pcbnew pns_regressions gerbview kicad2step spice api)
+
+usage() {
+    echo "Usage: $0 [build-image|build|test|shell|all]"
+    echo ""
+    echo "Commands:"
+    echo "  build-image   Build the ARM64 Docker image"
+    echo "  build         Configure and build QA tests inside container"
+    echo "  test          Run QA tests inside container"
+    echo "  shell         Open interactive shell in container"
+    echo "  all           Build image, build tests, run tests (default)"
+    exit 0
+}
+
+docker_run() {
+    docker run --rm --platform linux/arm64 \
+        -v "${SRC_DIR}:/src:rw" \
+        -w /src \
+        -e CCACHE_DIR=/src/build/arm64-ccache \
+        "$IMAGE_NAME" \
+        bash -c "$1"
+}
+
+cmd_build_image() {
+    echo "=== Building ARM64 Docker image ==="
+    docker build --platform linux/arm64 -t "$IMAGE_NAME" "$SCRIPT_DIR"
+}
+
+cmd_build() {
+    echo "=== Configuring and building QA tests for ARM64 ==="
+    docker_run "
+        mkdir -p ${CONTAINER_BUILD_DIR} && cd ${CONTAINER_BUILD_DIR} &&
+        cmake -G Ninja \
+            -DCMAKE_BUILD_TYPE=QABUILD \
+            -DKICAD_BUILD_QA_TESTS=ON \
+            -DKICAD_SCRIPTING=OFF \
+            -DKICAD_SCRIPTING_WXPYTHON=OFF \
+            -DKICAD_BUILD_I18N=OFF \
+            -DKICAD_UPDATE_CHECK=OFF \
+            -DKICAD_USE_CMAKE_FINDPROTOBUF=ON \
+            /src 2>&1 | tee cmake_log.txt &&
+        echo '=== CMake configuration complete ===' &&
+        echo 'KICAD_BUILD_ARCH detection:' &&
+        grep -i 'KICAD_BUILD_ARCH' CMakeCache.txt || true &&
+        ninja 2>&1 | tee build_log.txt
+    "
+}
+
+cmd_test() {
+    echo "=== Running QA tests for ARM64 ==="
+    local failed=()
+
+    for t in "${QA_TESTS[@]}"; do
+        echo "--- Running qa_${t} ---"
+
+        if docker_run "cd ${CONTAINER_BUILD_DIR}/qa && ctest -R qa_${t} --output-on-failure 2>&1"; then
+            echo "--- qa_${t}: PASSED ---"
+        else
+            echo "--- qa_${t}: FAILED ---"
+            failed+=("$t")
+        fi
+    done
+
+    echo ""
+    echo "=== Test Summary ==="
+
+    if [ ${#failed[@]} -eq 0 ]; then
+        echo "All tests passed."
+    else
+        echo "Failed tests: ${failed[*]}"
+        exit 1
+    fi
+}
+
+cmd_shell() {
+    echo "=== Opening shell in ARM64 container ==="
+    docker run --rm -it --platform linux/arm64 \
+        -v "${SRC_DIR}:/src:rw" \
+        -w /src \
+        "$IMAGE_NAME" \
+        bash
+}
+
+CMD="${1:-all}"
+
+case "$CMD" in
+    build-image) cmd_build_image ;;
+    build)       cmd_build ;;
+    test)        cmd_test ;;
+    shell)       cmd_shell ;;
+    all)         cmd_build_image && cmd_build && cmd_test ;;
+    -h|--help)   usage ;;
+    *)           echo "Unknown command: $CMD"; usage ;;
+esac