fix: 普通对话使用后台配置的LLM

- 从后台API(/api/config)获取智能体列表
- 热门智能体 = tags中包含hot标签
- 其他类别 = 根据category字段分类(basic/work/study/life)
- 游客限制从后台配置加载

www/admin.html

@@ -4,6 +4,7 @@
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>AI助手 - 后台管理</title>
+  <link rel="stylesheet" href="admin.css?v=3.6.6">
   <style>
     :root {
       --primary: #667eea;
@@ -318,6 +319,8 @@
       border-radius: 16px;
       max-width: 500px;
       width: 90%;
+      max-height: 80vh;
+      overflow-y: auto;
     }
     
     .modal-header {
@@ -432,6 +435,10 @@
           <span class="sidebar-icon">📊</span>
           <span>统计信息</span>
         </div>
+        <div class="sidebar-item" data-page="users">
+          <span class="sidebar-icon">👥</span>
+          <span>用户管理</span>
+        </div>
         <div class="sidebar-item" data-page="llm">
           <span class="sidebar-icon">🧠</span>
           <span>大模型配置</span>
@@ -440,9 +447,13 @@
           <span class="sidebar-icon">🤖</span>
           <span>智能体管理</span>
         </div>
-        <div class="sidebar-item" data-page="search">
-          <span class="sidebar-icon">🔍</span>
-          <span>搜索配置</span>
+        <div class="sidebar-item" data-page="chat">
+          <span class="sidebar-icon">💬</span>
+          <span>对话配置</span>
+        </div>
+        <div class="sidebar-item" data-page="tools">
+          <span class="sidebar-icon">🔧</span>
+          <span>工具配置</span>
         </div>
         <div class="sidebar-item" data-page="system">
           <span class="sidebar-icon">⚙️</span>
@@ -466,6 +477,6 @@
     </div>
   </div>
   
-  <script src="admin.js?v=1.0.0"></script>
+  <script src="admin.js?v=3.6.6"></script>
 </body>
 </html>

www/style.css

@@ -1049,6 +1049,31 @@ body {
   box-shadow: 0 0 8px rgba(102, 126, 234, 0.3);
 }
 
+.avatar-upload-section {
+  display: flex;
+  justify-content: center;
+  margin-bottom: 16px;
+}
+
+.avatar-upload-btn {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  padding: 12px 24px;
+  background: linear-gradient(135deg, var(--primary) 0%, #764ba2 100%);
+  color: white;
+  border: none;
+  border-radius: 10px;
+  font-size: 14px;
+  cursor: pointer;
+  transition: all 0.2s;
+}
+
+.avatar-upload-btn:hover {
+  transform: scale(1.02);
+  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
+}
+
 .edit-input-group {
   margin-bottom: 16px;
 }
@@ -1705,6 +1730,16 @@ body {
   color: var(--primary);
 }
 
+.recent-agent-title {
+  font-size: 14px;
+  color: #333;
+  font-weight: 500;
+  max-width: 120px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
 .recent-agent-agent-name {
   font-size: 12px;
   color: var(--primary);
@@ -1782,7 +1817,17 @@ body {
   color: var(--primary);
 }
 
-.agent-history-agent {
+.agent-history-title {
+  font-size: 14px;
+  color: #333;
+  font-weight: 500;
+  max-width: 150px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.agent-history-agent-name {
   font-size: 12px;
   color: var(--primary);
   background: rgba(102, 126, 234, 0.1);
@@ -2350,7 +2395,8 @@ body {
   font-size: 20px;
 }
 
-.clear-btn {
+/* TTS 语音播放按钮 */
+.tts-btn {
   background: rgba(255,255,255,0.2);
   border: none;
   border-radius: 8px;
@@ -2359,10 +2405,18 @@ body {
   cursor: pointer;
 }
 
-.clear-btn:active {
+.tts-btn:hover {
   background: rgba(255,255,255,0.3);
 }
 
+.tts-btn.active {
+  background: rgba(255,255,255,0.4);
+}
+
+.tts-btn svg {
+  display: block;
+}
+
 .messages-container {
   flex: 1;
   overflow-y: auto;
@@ -2715,6 +2769,193 @@ body {
   flex-shrink: 0;
 }
 
+/* 更多工具按钮 */
+.tools-btn {
+  position: relative;
+}
+
+.tools-count {
+  position: absolute;
+  top: -4px;
+  right: -4px;
+  min-width: 16px;
+  height: 16px;
+  padding: 0 4px;
+  background: #ef4444;
+  color: white;
+  font-size: 11px;
+  font-weight: 600;
+  border-radius: 8px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+/* 工具选择弹窗 */
+.tools-popup {
+  position: fixed;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  background: rgba(0, 0, 0, 0.5);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  z-index: 1000;
+}
+
+.tools-popup-content {
+  width: 90%;
+  max-width: 400px;
+  background: white;
+  border-radius: 16px;
+  overflow: hidden;
+}
+
+.tools-popup-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 16px 20px;
+  background: linear-gradient(135deg, var(--primary) 0%, #764ba2 100%);
+  color: white;
+}
+
+.tools-popup-header h3 {
+  margin: 0;
+  font-size: 18px;
+}
+
+.tools-popup-close {
+  width: 28px;
+  height: 28px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background: rgba(255, 255, 255, 0.2);
+  border: none;
+  border-radius: 14px;
+  color: white;
+  font-size: 20px;
+  cursor: pointer;
+  transition: background 0.2s;
+}
+
+.tools-popup-close:hover {
+  background: rgba(255, 255, 255, 0.3);
+}
+
+.tools-popup-body {
+  padding: 16px 20px;
+}
+
+.tools-popup-tip {
+  color: #718096;
+  font-size: 13px;
+  margin-bottom: 16px;
+}
+
+.tools-list {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+  max-height: 300px;
+  overflow-y: auto;
+}
+
+.tool-option {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  padding: 12px 16px;
+  background: #f5f7fa;
+  border: 2px solid transparent;
+  border-radius: 12px;
+  cursor: pointer;
+  transition: all 0.2s;
+}
+
+.tool-option:hover {
+  background: #e8ecf1;
+}
+
+.tool-option.selected {
+  background: rgba(102, 126, 234, 0.1);
+  border-color: var(--primary);
+}
+
+.tool-checkbox {
+  flex-shrink: 0;
+  color: #718096;
+}
+
+.tool-option.selected .tool-checkbox {
+  color: var(--primary);
+}
+
+.tool-icon {
+  width: 40px;
+  height: 40px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background: white;
+  border-radius: 10px;
+  font-size: 20px;
+}
+
+.tool-info {
+  flex: 1;
+}
+
+.tool-name {
+  font-weight: 500;
+  color: #2d3748;
+}
+
+.tool-type {
+  font-size: 12px;
+  color: #718096;
+  margin-top: 2px;
+}
+
+.tools-popup-footer {
+  display: flex;
+  gap: 12px;
+  padding: 16px 20px;
+  background: #f5f7fa;
+}
+
+.tools-popup-btn {
+  flex: 1;
+  padding: 12px;
+  border: none;
+  border-radius: 10px;
+  font-size: 14px;
+  font-weight: 500;
+  cursor: pointer;
+  transition: all 0.2s;
+}
+
+.tools-popup-btn.cancel {
+  background: #e2e8f0;
+  color: #4a5568;
+}
+
+.tools-popup-btn.cancel:hover {
+  background: #cbd5e0;
+}
+
+.tools-popup-btn.confirm {
+  background: linear-gradient(135deg, var(--primary) 0%, #764ba2 100%);
+  color: white;
+}
+
+.tools-popup-btn.confirm:hover {
+  transform: scale(1.02);
+}
+
 /* 导航按钮样式 */
 .nav-btn {
   padding: 6px 8px;