Windows Shell Icon Handler Fix (Explorer + DOpus Full Compatibility)

• Supports Windows Explorer
• Supports Directory Opus
• Supports Total Commander

1️⃣ First writes absolute path (Triggers DOpus)
2️⃣ Second write switches to relative path (makes icon permanent)
3️⃣ 96-byte padding for DOpus compatibility
4️⃣ Shell32.dll API call to force Windows icon cache refresh
5️⃣ Forces DOpus to rebuild via dopusrt.exe

Apache 2.0