Replace Unix shell boot with direct Qt6 GUI kernel interface

Co-authored-by: johndoe6345789 <224850594+johndoe6345789@users.noreply.github.com>

Dockerfile.image

@@ -3,7 +3,7 @@
 
 FROM ubuntu:22.04 AS image-builder
 
-# Install required tools
+# Install required tools (includes Qt6 and CMake)
 COPY scripts/docker-image-install-tools.sh /tmp/
 RUN /tmp/docker-image-install-tools.sh
 
@@ -16,8 +16,12 @@ COPY scripts/ ./scripts/
 COPY config/ ./config/
 COPY rootfs/ ./rootfs/
 
-# Build the init binary
+# Build the init binary and Qt6 GUI application
 RUN make init
+RUN make gui
+
+# Install to rootfs
+RUN make install
 
 # Download a minimal Linux kernel (using Ubuntu's kernel for now)
 COPY scripts/docker-image-download-kernel.sh /tmp/