小程序：修复页面切换卡顿 + 列表图片懒加载

- hall 大厅：5 个 tab Pane 改为懒常驻（首次进入挂载、之后 display 切换），
  切换不再卸载重挂/重复请求/闪骨架，切回秒开
- mine 我的：useDidShow 刷新加 30s 节流，切 tab 回来不重复转圈
- booking/content：列表图片补 lazyLoad，滚动不再卡顿
- 重新构建 dist 产物

miniprogram/src/pages/booking/index.jsx

@@ -66,7 +66,7 @@ export default function Booking() {
     <View className="cell" key={e.id} onClick={() => goDetail(e.id)}>
       <View className="cell-poster">
         <Image className="cell-img" src={e.image || coverWide} mode="aspectFill"
-          onError={() => {}} />
+          lazyLoad onError={() => {}} />
         <View className="cell-tags">
           {e.category
             ? <Text className={`ev-tag${tagCls(e)}`}>{e.category}</Text>

miniprogram/src/pages/content/index.jsx

@@ -41,7 +41,7 @@ function CardRow({ it, go }) {
   const img = it.cover_small || it.cover || (it.video ? it.video_cover : '');
   return (
     <View className={`ct-row ct-row--in`} onClick={() => go(it.id)}>
-      <Image className="ct-thumb" src={img || coverSquare} mode="aspectFill" onError={() => {}} />
+      <Image className="ct-thumb" src={img || coverSquare} mode="aspectFill" lazyLoad onError={() => {}} />
       <View className="ct-row-bd">
         <Text className="ct-tag" style={{ color: m.from }}>{m.label}</Text>
         <Text className="ct-row-title">{it.title}</Text>

miniprogram/src/pages/hall/index.jsx

@@ -51,11 +51,19 @@ export default function Hall() {
   const [ttype, setTtype] = useState(''); // 人才筛选
   const [wt, setWt] = useState('');       // 岗位筛选
   const [topic, setTopic] = useState(''); // 社区筛选
+  // 懒常驻：tab 首次进入后保持挂载（display 切换），切回不重新请求、不闪骨架
+  const [visited, setVisited] = useState({ tasks: true });
 
   useEffect(() => {
     hallOverview().then(setStat).catch(() => {});
   }, []);
 
+  const switchTab = (k) => {
+    if (k === tab) return;
+    setTab(k);
+    setVisited((v) => (v[k] ? v : { ...v, [k]: true }));
+  };
+
   const goPublish = () => {
     if (!isAuthed()) { Taro.showToast({ title: '请先登录', icon: 'none' }); return; }
     const url = PUBLISH_URL[tab];
@@ -75,7 +83,7 @@ export default function Hall() {
       <View className="hl-tabbar">
         <View className="hl-tabs">
           {TABS.map((t) => (
-            <Text key={t.k} className={`hl-tab${tab === t.k ? ' on' : ''}`} onClick={() => setTab(t.k)}>{t.l}</Text>
+            <Text key={t.k} className={`hl-tab${tab === t.k ? ' on' : ''}`} onClick={() => switchTab(t.k)}>{t.l}</Text>
           ))}
           <View className="hl-tab-spacer" />
           {PUBLISH_URL[tab] && (
@@ -90,13 +98,13 @@ export default function Hall() {
           </View>
         )}
       </View>
-      {/* 内容区独立滚动 */}
+      {/* 内容区独立滚动；Pane 懒常驻：首次进入挂载后保持 display 切换，避免切 tab 重请求/闪骨架 */}
       <ScrollView className="hl-scroll" scrollY enhanced showScrollbar={false}>
-        {tab === 'tasks' && <TasksPane mode={mode} onMode={setMode} />}
-        {tab === 'talents' && <TalentsPane ttype={ttype} onTtype={setTtype} />}
-        {tab === 'jobs' && <JobsPane wt={wt} onWt={setWt} />}
-        {tab === 'services' && <ServicesPane />}
-        {tab === 'community' && <CommunityPane topic={topic} onTopic={setTopic} />}
+        {visited.tasks && <View style={{ display: tab === 'tasks' ? 'block' : 'none' }}><TasksPane mode={mode} onMode={setMode} /></View>}
+        {visited.talents && <View style={{ display: tab === 'talents' ? 'block' : 'none' }}><TalentsPane ttype={ttype} onTtype={setTtype} /></View>}
+        {visited.jobs && <View style={{ display: tab === 'jobs' ? 'block' : 'none' }}><JobsPane wt={wt} onWt={setWt} /></View>}
+        {visited.services && <View style={{ display: tab === 'services' ? 'block' : 'none' }}><ServicesPane /></View>}
+        {visited.community && <View style={{ display: tab === 'community' ? 'block' : 'none' }}><CommunityPane topic={topic} onTopic={setTopic} /></View>}
         <View className="hl-scroll-pad" />
       </ScrollView>
     </View>

miniprogram/src/pages/mine/index.jsx

@@ -1,6 +1,6 @@
 import { View, Text, Button, Input, Image, ScrollView } from '@tarojs/components';
 import Taro from '@tarojs/taro';
-import { useState, useEffect } from 'react';
+import { useState, useEffect, useRef } from 'react';
 import { useTabIndex } from '@/utils/tab';
 import { isAuthed, getUser, logout, wxLogin, phoneLogin, bindPhone, sendCode, wxPhoneBind, updateProfile, getMe } from '@/utils/auth';
 import { getMyBookings, parseIso } from '@/utils/booking';
@@ -57,7 +57,15 @@ export default function Mine() {
     } catch { /* 保留上次列表，避免重进闪空 */ }
     finally { setLoaded(true); }
   };
-  Taro.useDidShow(() => { refresh(); });
+  // 切 tab 回来 30s 内不重复拉取（首次必刷），避免"我的"每次进入都转圈
+  const lastRefreshAt = useRef(0);
+  Taro.useDidShow(() => {
+    const now = Date.now();
+    if (now - lastRefreshAt.current > 30000) {
+      lastRefreshAt.current = now;
+      refresh();
+    }
+  });
 
   /* 微信一键登录 */
   const onWxLogin = async () => {