VendorBuy CN Fix

Version 1.0.0 / 首个公开版本

• Based on VendorBuy by cca220v.
• Fixes zhCN detection for known, learned, collected, and owned merchant items.
• Preserves VendorBuy's original merchant filtering, magenta tint, and reduced-opacity effect.
• Adds /vbcf as an alias while retaining /venbuy.
• Compatible with Can I Mog It?; no code or assets from it are included.

• 基于 cca220v 的 VendorBuy。
• 修复简体中文客户端对已知、已学会、已收集和已拥有状态的识别。
• 保留原版商人过滤、紫红色染色和降低透明度效果。