Rename system to 糖果短剧 and use new logo

Update the admin title across the login page, header, welcome page and
document title. Replace the favicon (64x64) and header logo (192x192)
with the 糖果短剧 icon.

Also picks up the deploy path fix in prod_build.sh (/server/tangguo).

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

src/views/login/index.vue

@@ -1,7 +1,7 @@
 <template>
   <div class="login-main">
     <div class="black-bg-box" v-loading="pfloading">
-      <div class="title">91fans后台管理系统</div>
+      <div class="title">糖果短剧后台管理系统</div>
       <div class="login-form-box">
         <p>登录</p>
         <el-form

src/views/main/components/header.vue

@@ -2,7 +2,7 @@
   <el-header>
     <div class="logo-text">
       <img :src="logoImg" class="logoImg" />
-      <span>91fans后台管理系统</span>
+      <span>糖果短剧后台管理系统</span>
     </div>
     <div class="header-btn">
       <el-select

src/views/welcome/index.vue

@@ -2,7 +2,7 @@
   <div class="welcome-box">
     <div class="titleBox">
       <p class="nickname">欢迎登陆「{{ userInfo.admin.name }}」</p>
-      <p class="title">91fans后台管理系统</p>
+      <p class="title">糖果短剧后台管理系统</p>
     </div>
   </div>
 </template>