feat: 百科rag

pages/wiki/index.wxml

@@ -17,6 +17,9 @@
     enhanced
     show-scrollbar="{{false}}"
     scroll-top="{{scrollTop}}"
+    refresher-enabled="{{true}}"
+    bindrefresherrefresh="onRefresh"
+    refresher-triggered="{{isRefreshing}}"
   >
     <view class="search-section">
         <view class="search-box-card">
@@ -111,13 +114,9 @@
     </view>
 
     <!-- Spacer -->
-     <view style="height: 160rpx;"></view>
+     <view style="height: 200rpx;"></view>
   </scroll-view>
 
-  <view class="floating-add-btn" bindtap="openIdentifyModal">
-    <t-icon name="scan" size="40rpx" color="#FFF" />
-    <text>植物识别</text>
-  </view>
 
   <!-- Identify Popup -->
   <t-popup visible="{{showIdentifyModal}}" bind:visible-change="onPopupVisibleChange" placement="bottom">
@@ -147,4 +146,16 @@
          </view>
       </view>
   </t-popup>
+
+  <!-- Floating Buttons (must be after popup in DOM to stay on top) -->
+  <view class="floating-btns" wx:if="{{!showIdentifyModal}}">
+    <view class="floating-btn chat-btn" bindtap="goToAiChat">
+      <text class="btn-emoji">🤖</text>
+      <text>AI问答</text>
+    </view>
+    <view class="floating-btn scan-btn" bindtap="openIdentifyModal">
+      <t-icon name="scan" size="40rpx" color="#FFF" />
+      <text>植物识别</text>
+    </view>
+  </view>
 </view>