chore：添加 chat_ui_config 支持，优化前端 UI 行为开关；实现附件类型动态控制，确保与后端配置同步

pages_tool/ai-chat/components/ai-chat-tools-panel.vue

@@ -9,26 +9,29 @@
         </button>
       </view>
       <view class="tools-grid">
-        <view class="tool-item" @click="selectImage">
+        <!-- PR-CHAT-UI-CONFIG (2026-09-20): 每个附件 tab 由 attachmentTypes 控制显隐
+             支持的 kind: image / file / audio / video, 缺失的 kind 自动隐藏
+             location 不属于附件, 不受此开关控制 -->
+        <view v-if="isTypeEnabled('image')" class="tool-item" @click="selectImage">
           <view class="tool-icon">
             <text class="icondiy icon-system-image-line"></text>
           </view>
           <text class="tool-text">{{ $lang('ai-chat.index.image') }}</text>
         </view>
-        <view class="tool-item" @click="selectVideo">
+        <view v-if="isTypeEnabled('video')" class="tool-item" @click="selectVideo">
           <view class="tool-icon">
             <text class="icondiy icon-system-video"></text>
           </view>
           <!-- 第二个参数是 $lang 的默认值: 后端 bundle 尚未下发该 key 时也不会显示 raw key -->
           <text class="tool-text">{{ $lang('ai-chat.index.video', '视频/音频') }}</text>
         </view>
-        <view class="tool-item" @click="selectFile">
+        <view v-if="isTypeEnabled('file')" class="tool-item" @click="selectFile">
           <view class="tool-icon">
             <text class="icondiy icon-system-file-2-line"></text>
           </view>
           <text class="tool-text">{{ $lang('ai-chat.index.file') }}</text>
         </view>
-        <view class="tool-item" @click="selectVoiceOrAudio">
+        <view v-if="isTypeEnabled('audio')" class="tool-item" @click="selectVoiceOrAudio">
           <view class="tool-icon">
             <text class="icondiy icon-system-chat-voice-line"></text>
           </view>
@@ -52,6 +55,9 @@ import { uploadImage, uploadMedia } from '@/common/js/media-upload.js'
  *
  * Props:
  *   visible: Boolean - 控制显示/隐藏
+ *   attachmentTypes: Array<String> - PR-CHAT-UI-CONFIG (2026-09-20) 可启用的附件 kind 列表
+ *     默认 ['image','file','audio','video'], 后端 chat_ui_config.ui_enable_attachment_types 可裁剪
+ *     location 不属于附件, 不受此 prop 影响
  *
  * Events:
  *   update:visible   - 同步关闭状态
@@ -67,6 +73,12 @@ export default {
     visible: {
       type: Boolean,
       default: false
+    },
+    attachmentTypes: {
+      type: Array,
+      default: function () {
+        return ['image', 'file', 'audio', 'video']
+      }
     }
   },
 
@@ -81,6 +93,13 @@ export default {
       this.$emit('update:visible', false)
     },
 
+    // PR-CHAT-UI-CONFIG (2026-09-20): 判断某个附件 kind 是否启用
+    //   undefined/空数组 → 兜底全部启用 (保留老调用方的体感)
+    isTypeEnabled(kind) {
+      if (!this.attachmentTypes || !this.attachmentTypes.length) return true
+      return this.attachmentTypes.indexOf(kind) !== -1
+    },
+
     selectImage() {
       const that = this
       uni.chooseImage({