feat: 后端版本迁移修改

pages/wiki/chat/history/index.js

@@ -23,7 +23,7 @@ Page({
     const current = reset ? 1 : this.data.current;
     this.setData({ loading: true });
 
-    request.get('/plant/chat/history', { current, pageSize: this.data.pageSize })
+    request.post('/plant/chat/history', { current, pageSize: this.data.pageSize })
       .then(res => {
         const items = (res.list || []).map(item => ({
           ...item,
@@ -82,7 +82,7 @@ Page({
       content: '确定删除这条问答记录吗？',
       success: (res) => {
         if (res.confirm) {
-          request.post('/plant/chat/history/delete', { id }).then(() => {
+          request.post('/plant/chat/history/delete', { ids: [id] }).then(() => {
             wx.showToast({ title: '已删除', icon: 'success' });
             this.fetchHistory(true);
           });

pages/wiki/chat/index.js

@@ -96,7 +96,7 @@ Page({
 
     request.stream('/plant/chat/stream', { query }, {
       onChunk: (res) => {
-        const text = this._decode(res.data);
+        const text = this._decode(res.chunk || res.data);
 
         // Detect non-SSE JSON error (e.g. quota exceeded returns {code:7, msg:"..."})
         if (!text.startsWith('data: ')) {