chore：添加欢迎语配套快捷问题功能，支持用户快速发送常见问题；优化数据格式处理与样式

pages_tool/ai-chat/ai-chat-message.vue

@@ -288,7 +288,22 @@
                   </text>
                 </view>
               </view>
-              
+
+              <!-- PR-WELCOME-QUICK-CHIPS (2026-09-19): 欢迎语配套快捷问题
+                   欢迎语气泡下方显示快捷问题 chips, 点击直接作为用户消息发送
+                   一次性,点了之后从 message 上摘除 (避免重复点) -->
+              <view v-if="message.quickQuestions && message.quickQuestions.length > 0" class="quick-questions-row">
+                <view
+                  v-for="(q, qi) in message.quickQuestions"
+                  :key="qi"
+                  class="quick-question-chip"
+                  hover-class="quick-question-chip--hover"
+                  @click="onQuickQuestionClick(message, q)">
+                  <text class="quick-question-icon">💬</text>
+                  <text class="quick-question-text">{{ getQuickQuestionText(q) }}</text>
+                </view>
+              </view>
+
               <!-- 操作按钮 -->
               <view class="message-actions" v-if="message.actions && message.actions.length > 0">
                 <button
@@ -1011,13 +1026,16 @@ export default {
       let welcomeText = ''
       let isMarkdown = false
       let welcomeLoaded = false
+      // PR-FIX (2026-09-20): welcomeInfo 原为 if 块内 const,第 3 步拼 quickQuestions
+      //   时在块外引用 → ReferenceError, 提升到函数作用域
+      let welcomeInfo = null
 
       // 1. 尝试从 API 获取远程欢迎语
       try {
         const config = await aiService.getServiceConfig()
         console.log('[AI Chat] API getServiceConfig 返回:', JSON.stringify(config))
         if (config) {
-          const welcomeInfo = config.welcome_info
+          welcomeInfo = config.welcome_info
           console.log('[AI Chat] welcomeInfo:', JSON.stringify(welcomeInfo))
           const remoteText = welcomeInfo?.welcome || ''
           const isEnabled = welcomeInfo?.is_enabled
@@ -1053,7 +1071,11 @@ export default {
           type: isMarkdown ? 'markdown' : 'text',
           content: welcomeText,
           timestamp: Date.now(),
-          actions: []
+          actions: [],
+          // PR-WELCOME-QUICK-CHIPS (2026-09-19): 欢迎语配套快捷问题 (chips)
+          //   后端可存 string[] 或 {id,text}[] ,前端统一归一化为 string[]
+          //   message.quickQuestions 数组非空 → 模板渲染 chips;点击调 onQuickQuestionClick
+          quickQuestions: this.normalizeQuickQuestions(welcomeInfo && welcomeInfo.quick_questions)
         }
         this.messages.push(welcomeMsg)
         this.$nextTick(() => this.scrollToBottom())
@@ -1061,6 +1083,46 @@ export default {
       }
     },
 
+    // PR-WELCOME-QUICK-CHIPS (2026-09-19): 归一化 quick_questions 数据格式
+    //   后端可能存 string[] ("如何下单?" / "退换货流程")
+    //   也可能存 {id, text}[] ({id:'q1',text:'如何下单?'})
+    //   前端统一抽出 text,空值过滤
+    normalizeQuickQuestions(raw) {
+      if (!Array.isArray(raw)) return []
+      return raw
+        .map(function (q) {
+          if (q && typeof q === 'object') return q.text || q.label || ''
+          return String(q || '')
+        })
+        .filter(function (s) { return s && s.trim() !== '' })
+    },
+
+    // PR-WELCOME-QUICK-CHIPS (2026-09-19): 渲染文本提取
+    getQuickQuestionText(q) {
+      if (q && typeof q === 'object') return q.text || q.label || ''
+      return String(q || '')
+    },
+
+    // PR-WELCOME-QUICK-CHIPS (2026-09-19): 点击 chip
+    //   1. 把文本塞进 inputText,模拟"用户已输入"
+    //   2. 清空 welcome bubble 的 chips (一次性)
+    //   3. 调 sendMessage() 走正常 chat 流 (建 user bubble + AI 回复)
+    async onQuickQuestionClick(message, q) {
+      const text = this.getQuickQuestionText(q)
+      if (!text || !text.trim()) return
+      try {
+        // 一次性:点了就摘掉 chips,避免重复点
+        message.quickQuestions = []
+        // 走现有 sendMessage 流程 (inputText → 校验 → sendStream/Normal)
+        this.inputText = text
+        // 让 DOM 先更新再发,避免用户视觉上"消息凭空出现"
+        await this.$nextTick()
+        await this.sendMessage()
+      } catch (e) {
+        console.warn('[AI Chat] onQuickQuestionClick failed:', e && e.message)
+      }
+    },
+
     // 生成消息的唯一 key（兼容非 H5 平台）
     getMessageKey(message, index) {
       const rawId = message.id || message.timestamp || index;
@@ -3827,6 +3889,50 @@ _handleStreamError(msg) {
             }
           }
 
+          // PR-WELCOME-QUICK-CHIPS (2026-09-19): 欢迎语配套快捷问题 chip 样式
+          .quick-questions-row {
+            margin-top: 16rpx;
+            display: flex;
+            flex-wrap: wrap;
+            gap: 16rpx;
+            justify-content: flex-start;
+            max-width: 100%;
+
+            .quick-question-chip {
+              display: inline-flex;
+              align-items: center;
+              gap: 8rpx;
+              padding: 12rpx 24rpx;
+              background: #ffffff;
+              border: 1rpx solid #1E9FFF;
+              border-radius: 32rpx;
+              font-size: 26rpx;
+              color: #1E9FFF;
+              cursor: pointer;
+              transition: all 0.2s ease;
+              max-width: 100%;
+              line-height: 1.4;
+
+              .quick-question-icon {
+                font-size: 24rpx;
+                flex-shrink: 0;
+              }
+
+              .quick-question-text {
+                flex: 1;
+                word-break: break-word;
+                white-space: pre-wrap;
+              }
+            }
+
+            .quick-question-chip--hover {
+              background: #1E9FFF;
+              color: #ffffff;
+              transform: translateY(-1rpx);
+              box-shadow: 0 4rpx 12rpx rgba(30, 159, 255, 0.2);
+            }
+          }
+
           .message-actions {
             margin-top: 24rpx;
             display: flex;
@@ -3834,7 +3940,7 @@ _handleStreamError(msg) {
             justify-content: flex-start;
             flex-wrap: nowrap;
             width: 100%;
-            
+
             .action-btn {
               border-radius: $radius-lg;
               font-size: 22rpx;