寻宝：清理匹配成功的玩家信息；修复机器人和匹配条件等bug

shared/pubUtils/util.ts

@@ -251,13 +251,15 @@ export function getRandEelm(source: Array<any> = [], cnt = 1): Array<any> {
   if (cnt > source.length) return [];
   if (cnt === source.length) return source;
   let idxs = new Set();
-  for (let i = 0; i < cnt; ++i) {
+
+  while(1) {
     let rand = Math.floor(Math.random() * source.length);
     idxs.add(rand);
     if (idxs.size == cnt) {
       break;
     }
   }
+
   return source.filter((_item, idx) => idxs.has(idx));
 }