ix init script duplication and CPIO creation issues

- Remove duplicate /sbin/init copying from initramfs_setup_zinit()
- Only /init should be config/init (initramfs setup script)
- No /sbin/init needed - config/init calls 'switch_root /mnt/root /sbin/zinit init'
- Remove unsupported cpio --owner option that broke CPIO creation
- Fix validation to not expect /sbin/init file
- Correct boot flow: /init → switch_root → /sbin/zinit init
- Remove strip and UPX compression from zinit binary copying
- UPX compression was corrupting the zinit binary causing segfaults after switch_root
- Keep zinit unmodified as it's

scripts/lib/alpine.sh

@@ -374,17 +374,18 @@ function alpine_install_firmware() {
     local initramfs_dir="$1"
     local firmware_conf="$2"
     
-    section_header "Installing Required Firmware Packages"
+    section_header "Installing Required Firmware Packages (Selective)"
     
     # Use smart firmware selection from module analysis if available
     local firmware_packages=()
     
     if [[ -n "${REQUIRED_FIRMWARE_PACKAGES:-}" ]]; then
-        log_info "Using intelligent firmware selection based on required modules"
+        log_info "Using intelligent firmware selection based on COPIED modules only"
         read -ra firmware_packages <<< "$REQUIRED_FIRMWARE_PACKAGES"
         
+        log_info "Required firmware packages (${#firmware_packages[@]}):"
         for package in "${firmware_packages[@]}"; do
-            log_info "  Required by modules: ${package}"
+            log_info "  ✓ ${package}"
         done
     else
         log_info "Falling back to firmware configuration file"