dsh-xiangqi: DSH client plugin for playing Chinese Chess during AI thinking

dsh-xiangqi is an MIT-licensed open-source DSH Web client plugin developed by ovdoesw, allowing users to play Chinese Chess with a floating cartoon pet while waiting for the AI to think. The gameplay is purely for entertainment, fully offline, and non-blocking. It features a built-in custom TypeScript engine (negamax + alpha-beta pruning + iterative deepening, executed asynchronously with chunking) with three difficulty levels: beginner, intermediate, and advanced.