Add web management UI, offline packages, WinPE consolidation, and docs

- webapp/: Flask web management app with:
  - Dashboard showing image types and service status
  - USB import page for WinPE deployment content
  - Unattend.xml visual editor (driver paths, specialize commands,
    OOBE settings, first logon commands, raw XML view)
  - API endpoints for services and image management
- SETUP.md: Complete setup documentation for streamlined process
- build-usb.sh: Now copies webapp and optional WinPE images to USB
- playbook: Added webapp deployment (systemd service, Apache reverse
  proxy), offline package verification, WinPE auto-import from USB

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

build-usb.sh

@@ -23,8 +23,12 @@ PLAYBOOK_DIR="$SCRIPT_DIR/playbook"
 OFFLINE_PKG_DIR="$SCRIPT_DIR/offline-packages"
 
 # --- Validate arguments ---
-if [ $# -ne 2 ]; then
-    echo "Usage: sudo $0 /dev/sdX /path/to/ubuntu-24.04.iso"
+if [ $# -lt 2 ]; then
+    echo "Usage: sudo $0 /dev/sdX /path/to/ubuntu-24.04.iso [/path/to/winpe-images]"
+    echo ""
+    echo "  The optional third argument is the path to WinPE deployment content"
+    echo "  (e.g., the mounted Media Creator LITE USB). If provided, the images"
+    echo "  will be bundled onto the CIDATA partition for automatic import."
     echo ""
     echo "Available removable devices:"
     lsblk -d -o NAME,SIZE,TRAN,RM | grep -E '^\S+\s+\S+\s+(usb)\s+1'
@@ -33,6 +37,7 @@ fi
 
 USB_DEV="$1"
 ISO_PATH="$2"
+WINPE_SOURCE="${3:-}"
 
 # Safety checks
 if [ "$(id -u)" -ne 0 ]; then
@@ -171,6 +176,26 @@ echo "    Copied $DEB_COUNT .deb packages to packages/"
 cp -r "$PLAYBOOK_DIR" "$MOUNT_POINT/playbook"
 echo "    Copied playbook/"
 
+# Copy webapp
+WEBAPP_DIR="$SCRIPT_DIR/webapp"
+if [ -d "$WEBAPP_DIR" ]; then
+    mkdir -p "$MOUNT_POINT/webapp"
+    cp -r "$WEBAPP_DIR/app.py" "$WEBAPP_DIR/requirements.txt" "$MOUNT_POINT/webapp/"
+    cp -r "$WEBAPP_DIR/templates" "$WEBAPP_DIR/static" "$MOUNT_POINT/webapp/"
+    echo "    Copied webapp/"
+fi
+
+# Optionally copy WinPE deployment images
+if [ -n "$WINPE_SOURCE" ] && [ -d "$WINPE_SOURCE" ]; then
+    echo "    Copying WinPE deployment content from $WINPE_SOURCE..."
+    mkdir -p "$MOUNT_POINT/images"
+    cp -r "$WINPE_SOURCE"/* "$MOUNT_POINT/images/" 2>/dev/null || true
+    IMG_SIZE=$(du -sh "$MOUNT_POINT/images" | cut -f1)
+    echo "    Copied WinPE images ($IMG_SIZE)"
+elif [ -n "$WINPE_SOURCE" ]; then
+    echo "    WARNING: WinPE source path not found: $WINPE_SOURCE (skipping)"
+fi
+
 # List what's on CIDATA
 echo ""
 echo "    CIDATA contents:"