chore: 清理敏感与开发文档，仅同步代码

- 永久忽略并从仓库移除 开发文档/
- 移除并忽略 .env 与小程序私有配置
- 同步小程序/管理端/API与脚本改动

Made-with: Cursor

miniprogram/pages/match/match.wxss

@@ -27,15 +27,9 @@
   padding: 0 32rpx;
 }
 
-.nav-settings {
+.nav-left-placeholder {
   width: 80rpx;
-  height: 80rpx;
   flex-shrink: 0;
-  border-radius: 50%;
-  background: #1c1c1e;
-  display: flex;
-  align-items: center;
-  justify-content: center;
 }
 
 .nav-title {
@@ -51,10 +45,6 @@
   flex-shrink: 0;
 }
 
-.settings-icon {
-  font-size: 36rpx;
-}
-
 .nav-placeholder {
   width: 100%;
 }