fix: Logo 从插件配置 API 动态获取

- img src 默认用静态 logo 路径
- footer.php 加 XHR 请求 config.json
- 读取 site_config.official_website_logo 动态替换

clientarea/hgcloud/footer.php

@@ -40,6 +40,26 @@
   window.__navigateTo = function(href) { doTransition(href); };
 })();
 </script>
+
+<!-- 动态加载插件配置 Logo -->
+<script>
+(function() {
+  var logoEl = document.getElementById('siteLogo');
+  if (!logoEl) return;
+  var xhr = new XMLHttpRequest();
+  xhr.open('GET', '/web/BlackFruit-web/plugins/addon/theme_configurator/config.json', true);
+  xhr.onload = function() {
+    if (xhr.status === 200) {
+      try {
+        var cfg = JSON.parse(xhr.responseText);
+        var logoUrl = cfg.site_config && cfg.site_config.official_website_logo;
+        if (logoUrl) logoEl.src = logoUrl;
+      } catch(e) {}
+    }
+  };
+  xhr.send();
+})();
+</script>
 </body>
 
 </html>

clientarea/hgcloud/login.php

@@ -17,7 +17,7 @@
   </div>
   <div class="template">
     <a href="/" class="back-home-link">
-      <img src="{$site_config.official_website_logo|default='/web/BlackFruit-web/assets/img/logo.png'}" alt="Logo" class="back-home-logo">
+      <img id="siteLogo" src="/web/BlackFruit-web/assets/img/logo.png" alt="Logo" class="back-home-logo">
     </a>
     <div id="login" v-cloak>
       <div class="login-container">

clientarea/hgcloud/regist.php

@@ -12,7 +12,7 @@
   </div>
   <div class="template">
     <a href="/" class="back-home-link">
-      <img src="{$site_config.official_website_logo|default='/web/BlackFruit-web/assets/img/logo.png'}" alt="Logo" class="back-home-logo">
+      <img id="siteLogo" src="/web/BlackFruit-web/assets/img/logo.png" alt="Logo" class="back-home-logo">
     </a>
     <div id="regist">
       <div class="login-container">