fix(scroll): improve scroll and touch event handling across components

- modify Discovery component's overflow settings and scroll wrapper classes
- fix CardSwiper touch event logic: remove unnecessary touchmove prevention, add proper event propagation and conditional default handling
- restructure ChatMainList to use a unified scroll container for both discovery and chat tabs, add scroll reference, refine scroll calculation and implement smooth scroll to bottom
- fix missing newline at end of CardSwiper script file

src/pages/home/components/ChatMainList/index.vue

@@ -5,6 +5,10 @@
       <ChatTopNavBar ref="topNavBarRef" :mainPageDataModel="mainPageDataModel" />
     </div>
 
+    <div ref="mainScrollRef"
+      class="min-h-0 flex-1 overflow-y-auto overscroll-contain scrollbar-none [-ms-overflow-style:none] [&::-webkit-scrollbar]:hidden"
+      @scroll="handleScroll" @touchstart.capture="handleScrollAreaTouchStart" @touchstart="handleScrollAreaTouchStart"
+      @touchmove="handleScrollAreaTouchMove">
       <div class="relative">
         <img class="w-full block" :src="mainPageDataModel?.initPageImages?.backgroundImageUrl" style="height: 252px;" />
         <div class="absolute bottom-0 left-0 right-0 flex-1">
@@ -18,8 +22,9 @@
       </div>
 
       <!-- 发现页 -->
-    <div v-show="tabIndex === 0" class="min-h-0 flex-1 overflow-hidden" @touchstart.capture="handleScrollAreaTouchStart"
-      @touchstart="handleScrollAreaTouchStart" @touchmove="handleScrollAreaTouchMove">
+      <div v-show="tabIndex === 0" class="min-h-0 flex-1 overflow-hidden"
+        @touchstart.capture="handleScrollAreaTouchStart" @touchstart="handleScrollAreaTouchStart"
+        @touchmove="handleScrollAreaTouchMove">
 
         <Discovery @scroll-touch-start="handleScrollAreaTouchStart" @scroll-touch="handleScrollAreaTouchMove" />
       </div>
@@ -117,6 +122,7 @@
           </template>
         </div>
       </div>
+    </div>
 
     <!-- 输入框区域 -->
     <div class="mt-auto shrink-0">
@@ -181,6 +187,7 @@ const appStore = useAppStore();
 
 /// 输入框组件引用
 const inputAreaRef = ref(null);
+const mainScrollRef = ref(null);
 const topNavBarRef = ref();
 const notitceConent = ref(null);
 
@@ -331,10 +338,17 @@ const handleScroll = (e) => {
     hideKeyboardByScroll();
   }
 
-  const detail = e.detail;
-  topNavBarRef.value.show = parseInt(detail.scrollTop) > welcomeHeight.value;
-
-  const currentScrollTop = detail.scrollTop;
+  const currentScrollTop = Number(e?.detail?.scrollTop ?? e?.target?.scrollTop ?? 0);
+  const scrollEl = e?.target;
+  if (topNavBarRef.value) {
+    topNavBarRef.value.show = currentScrollTop > welcomeHeight.value;
+  }
+  if (
+    scrollEl &&
+    scrollEl.scrollHeight - currentScrollTop - scrollEl.clientHeight < 8
+  ) {
+    isAutoScroll.value = true;
+  }
   // 如果向上滚动 (当前位置小于上一次记录的位置)
   if (currentScrollTop < lastScrollTop - 2) {
     // 增加 2px 阈值防止抖动
@@ -361,6 +375,12 @@ const scrollToBottom = (force = false) => {
     // 使用更大的值确保滚动到真正的底部
     const targetScrollTop = 99999 + Math.random();
     scrollTop.value = targetScrollTop;
+    if (mainScrollRef.value && typeof mainScrollRef.value.scrollTo === "function") {
+      mainScrollRef.value.scrollTo({
+        top: mainScrollRef.value.scrollHeight,
+        behavior: "smooth",
+      });
+    }
   });
 };
 

src/pages/home/components/Discovery/components/CardSwiper/index.vue

@@ -1,5 +1,5 @@
 <template>
-  <div class="w-full" @touchstart="handleTouchStart" @touchmove.stop.prevent="handleTouchMove"
+  <div class="w-full" @touchstart="handleTouchStart" @touchmove="handleTouchMove"
     @touchend="handleTouchEnd" @touchcancel="handleTouchCancel">
     <div :class="['relative w-full h-[270px] overflow-hidden', list.length <= 1 ? 'overflow-visible' : '']">
       <div v-for="slot in renderSlots" :key="slot.key"
@@ -424,6 +424,10 @@ const handleTouchMove = (event) => {
     return;
   }
 
+  event.stopPropagation();
+  if (event.cancelable) {
+    event.preventDefault();
+  }
   deltaX.value = clamp(moveX, -hiddenOffset, hiddenOffset);
 };
 

src/pages/home/components/Discovery/index.vue

@@ -1,8 +1,8 @@
 <template>
-  <div class="flex flex-col h-full overflow-hidden">
+  <div class="flex flex-col overflow-visible">
     <FindTabs v-if="discoveryTabs.length" v-model="activeIndex" :tabs="discoveryTabs" @change="handleTabChange" />
 
-    <div class="discovery-scroll flex-1" overflow-y @touchstart="emitScrollTouchStart" @touchmove="emitScrollTouch"
+    <div class="discovery-scroll" @touchstart="emitScrollTouchStart" @touchmove="emitScrollTouch"
       @scroll="emitScrollTouch">
       <CardSwiper v-if="discoveryCards.length" :list="discoveryCards" @didSelectItem="handleCardClick" />