feat: add Ventoy-derived support files for direct boot path

Include pre-built x64 support binaries needed for Ventoy-compatible
direct ISO boot:
- hiperiso_x64.efi: standalone chain-loader EFI app
- hiperiso.cpio, vtloopex.cpio, hiperiso_unix.cpio: initrd injection
- iso9660_x64.efi, udf_x64.efi: standalone filesystem drivers
- vtoyutil_x64.efi: utility driver
- vtoyjump64.exe, common_bcd.xz, common_bootmgr.xz: Windows PE boot
- wimboot.x86_64.xz, memdisk, ipxe.krn: legacy boot helpers
- dragonfly.mfs.xz: DragonFly BSD support
- 7z/, imdisk/: Windows runtime tools

All files are Ventoy-derived binaries (not rebuilt from source).
Standalone EFI app confirmed safe: receives data via command line
params (env_param, mem:), not via VENTOY_GUID.

Disk image: 32MB FAT16, 6MB free after all files added.

scripts/package_release.sh

@@ -100,6 +100,12 @@ cp "$HIPERISO_ROOT/config/hiperiso.json.example" "$PAYLOAD/config/"
 # ── version ─────────────────────────────────────────────────────────
 echo "1.0.0" > "$PAYLOAD/hiperiso/version"
 
+# Extract Ventoy-derived support files for direct boot path
+if [ -f "$HIPERISO_ROOT/vendor/support-x64.tar.xz" ]; then
+    tar -xJf "$HIPERISO_ROOT/vendor/support-x64.tar.xz" -C "$STAGING/"
+    cp -a "$STAGING/support-x64/"* "$PAYLOAD/hiperiso/"
+fi
+
 rm -f "$PAYLOAD/log.txt"
 
 sed -i 's/ventoy/hiperiso/g' "$PAYLOAD/grub/i386-pc/moddep.lst" 2>/dev/null || true
@@ -146,6 +152,24 @@ for f in "$PAYLOAD"/tool/x86_64/*; do
 done
 mcopy -i "$ESP_IMG" "$PAYLOAD/hiperiso/version" ::/hiperiso/
 
+for f in "$PAYLOAD"/hiperiso/*; do
+    [ -f "$f" ] || continue
+    name=$(basename "$f")
+    case "$name" in hiperiso.disk.img*) continue ;; esac
+    mcopy -i "$ESP_IMG" "$f" ::/hiperiso/ 2>/dev/null || true
+done
+for d in 7z imdisk; do
+    if [ -d "$PAYLOAD/hiperiso/$d" ]; then
+        mmd -i "$ESP_IMG" "::/hiperiso/$d" 2>/dev/null || true
+        for sub in "$PAYLOAD/hiperiso/$d"/*/; do
+            [ -d "$sub" ] || continue
+            subdir=$(basename "$sub")
+            mmd -i "$ESP_IMG" "::/hiperiso/$d/$subdir" 2>/dev/null || true
+            mcopy -s -i "$ESP_IMG" "$sub." "::/hiperiso/$d/$subdir/" 2>/dev/null || true
+        done
+    fi
+done
+
 xz --check=crc32 "$ESP_IMG"
 
 echo "=== hiperiso release package assembled ==="