haha

backend/apps/products/api.py

@@ -432,7 +432,9 @@ def get_product_with_prices(request, product_id: int):
 @paginate(PageNumberPagination, page_size=20)
 @cache_page(settings.CACHE_TTL_SECONDS)
 def search_products(request, q: str, filters: ProductSearchFilter = Query(...)):
-    """Search approved products by name or description."""
+    """Search approved products by name, description, or by user_id (submitter)."""
+    from apps.users.models import User
+
     prices_prefetch = Prefetch(
         "prices",
         queryset=ProductPrice.objects.select_related("website"),
@@ -444,6 +446,12 @@ def search_products(request, q: str, filters: ProductSearchFilter = Query(...)):
     )
     if filters.category_id:
         products = products.filter(category_id=filters.category_id)
+    if filters.user_id:
+        try:
+            submitter = User.objects.get(user_id=filters.user_id)
+            products = products.filter(submitted_by=submitter)
+        except User.DoesNotExist:
+            products = products.none()
 
     needs_price_stats = (
         filters.min_price is not None

backend/apps/products/migrations/0005_merge_20260130_1626.py

@@ -0,0 +1,14 @@
+# Generated by Django 4.2.27 on 2026-01-30 08:26
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('products', '0002_product_images'),
+        ('products', '0004_product_reject_reason_product_reviewed_at_and_more'),
+    ]
+
+    operations = [
+    ]

backend/apps/products/schemas.py

@@ -157,6 +157,7 @@ class ProductFilter(FilterSchema):
 class ProductSearchFilter(FilterSchema):
     """Product search filter schema."""
     category_id: Optional[int] = None
+    user_id: Optional[str] = None  # 按用户ID筛选该用户提交的商品
     min_price: Optional[Decimal] = None
     max_price: Optional[Decimal] = None
     sort_by: Optional[str] = None

backend/apps/users/admin.py

@@ -5,9 +5,9 @@ from .models import User
 
 @admin.register(User)
 class UserAdmin(BaseUserAdmin):
-    list_display = ['id', 'open_id', 'name', 'email', 'role', 'is_active', 'created_at']
+    list_display = ['id', 'user_id', 'open_id', 'name', 'email', 'role', 'is_active', 'created_at']
     list_filter = ['role', 'is_active', 'is_staff']
-    search_fields = ['open_id', 'name', 'email']
+    search_fields = ['user_id', 'open_id', 'name', 'email']
     ordering = ['-created_at']
     
     fieldsets = (

backend/apps/users/friends.py

@@ -20,6 +20,7 @@ def serialize_user_brief(user: User) -> UserBrief:
     return UserBrief(
         id=user.id,
         open_id=user.open_id,
+        user_id=user.user_id,
         name=user.name,
         email=user.email,
         avatar=user.avatar,
@@ -58,6 +59,15 @@ def list_friends(request):
     return friends
 
 
+@router.get("/requests/incoming/count", auth=JWTAuth())
+def incoming_count(request):
+    """Lightweight: only return count of pending incoming requests (for badge)."""
+    count = FriendRequest.objects.filter(
+        receiver=request.auth, status=FriendRequest.Status.PENDING
+    ).count()
+    return {"count": count}
+
+
 @router.get("/requests/incoming", response=List[FriendRequestOut], auth=JWTAuth())
 def list_incoming_requests(request):
     """List incoming friend requests."""
@@ -171,12 +181,18 @@ def cancel_request(request, request_id: int):
 
 @router.get("/search", response=List[UserBrief], auth=JWTAuth())
 def search_users(request, q: Optional[str] = None, limit: int = 10):
-    """Search users by open_id or name."""
+    """Search users by user_id (exact), open_id or name."""
     if not q:
         return []
 
+    q_clean = (q or "").strip()
     queryset = (
-        User.objects.filter(Q(open_id__icontains=q) | Q(name__icontains=q))
+        User.objects.filter(
+            Q(user_id__iexact=q_clean)
+            | Q(user_id__icontains=q_clean)
+            | Q(open_id__icontains=q_clean)
+            | Q(name__icontains=q_clean)
+        )
         .exclude(id=request.auth.id)
         .order_by("id")[: max(1, min(limit, 50))]
     )

backend/apps/users/migrations/0005_add_user_id.py

@@ -0,0 +1,48 @@
+# Generated manually for user_id (shareable ID for friend/product search)
+
+import secrets
+import string
+from django.db import migrations, models
+
+
+def generate_user_id_for_user(User):
+    alphabet = string.ascii_lowercase + string.digits
+    for _ in range(10):
+        candidate = "U" + "".join(secrets.choice(alphabet) for _ in range(8))
+        if not User.objects.filter(user_id=candidate).exists():
+            return candidate
+    return "U" + secrets.token_hex(4)
+
+
+def populate_user_id(apps, schema_editor):
+    User = apps.get_model("users", "User")
+    for user in User.objects.filter(user_id__isnull=True).iterator():
+        user.user_id = generate_user_id_for_user(User)
+        user.save(update_fields=["user_id"])
+
+
+def noop(apps, schema_editor):
+    pass
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("users", "0004_rename_friendreq_receiver_status_idx_friend_requ_receive_383c2c_idx_and_more"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="user",
+            name="user_id",
+            field=models.CharField(
+                blank=True,
+                help_text="可分享的用户ID，用于好友搜索、商品搜索等",
+                max_length=16,
+                null=True,
+                unique=True,
+                verbose_name="用户ID",
+            ),
+        ),
+        migrations.RunPython(populate_user_id, noop),
+    ]

backend/apps/users/models.py

@@ -1,6 +1,8 @@
 """
 User models for authentication and profile management.
 """
+import secrets
+import string
 from django.db import models
 from django.contrib.auth.models import AbstractBaseUser, BaseUserManager, PermissionsMixin
 
@@ -37,6 +39,14 @@ class User(AbstractBaseUser, PermissionsMixin):
     
     id = models.AutoField(primary_key=True)
     open_id = models.CharField('OpenID', max_length=64, unique=True)
+    user_id = models.CharField(
+        '用户ID',
+        max_length=16,
+        unique=True,
+        blank=True,
+        null=True,
+        help_text='可分享的用户ID，用于好友搜索、商品搜索等',
+    )
     name = models.CharField('用户名', max_length=255, blank=True, null=True)
     email = models.EmailField('邮箱', max_length=320, blank=True, null=True)
     avatar = models.TextField('头像', blank=True, null=True)
@@ -70,11 +80,26 @@ class User(AbstractBaseUser, PermissionsMixin):
         indexes = [
             models.Index(fields=["role", "is_active"]),
             models.Index(fields=["created_at"]),
+            models.Index(fields=["user_id"]),
         ]
     
     def __str__(self):
         return self.name or self.open_id
     
+    def _generate_user_id(self):
+        """Generate a unique shareable user_id (e.g. U8x3k2m1)."""
+        alphabet = string.ascii_lowercase + string.digits
+        for _ in range(10):
+            candidate = "U" + "".join(secrets.choice(alphabet) for _ in range(8))
+            if not User.objects.filter(user_id=candidate).exists():
+                return candidate
+        return "U" + secrets.token_hex(4)
+    
+    def save(self, *args, **kwargs):
+        if not self.user_id:
+            self.user_id = self._generate_user_id()
+        super().save(*args, **kwargs)
+    
     @property
     def is_admin(self):
         return self.role == self.Role.ADMIN

backend/apps/users/schemas.py

@@ -10,6 +10,7 @@ class UserOut(Schema):
     """Public user output schema."""
     id: int
     open_id: str
+    user_id: Optional[str] = None  # 可分享的用户ID，用于好友/商品搜索
     name: Optional[str] = None
     email: Optional[str] = None
     avatar: Optional[str] = None
@@ -28,6 +29,7 @@ class UserBrief(Schema):
     """Minimal user info for social features."""
     id: int
     open_id: str
+    user_id: Optional[str] = None  # 可分享的用户ID
     name: Optional[str] = None
     email: Optional[str] = None
     avatar: Optional[str] = None

frontend/next-env.d.ts

@@ -0,0 +1,5 @@
+/// <reference types="next" />
+/// <reference types="next/image-types/global" />
+
+// NOTE: This file should not be edited
+// see https://nextjs.org/docs/basic-features/typescript for more information.

frontend/package.json

@@ -52,6 +52,7 @@
     "input-otp": "^1.4.2",
     "lucide-react": "^0.453.0",
     "next-themes": "^0.4.6",
+    "pnpm": "^10.28.2",
     "qrcode.react": "^4.2.0",
     "react": "^19.2.1",
     "react-day-picker": "^9.11.1",

frontend/src/App.tsx

@@ -1,25 +1,37 @@
+import { lazy, Suspense } from "react";
 import { Toaster } from "@/components/ui/sonner";
 import { TooltipProvider } from "@/components/ui/tooltip";
-import NotFound from "@/features/common/pages/NotFound";
 import { Route, Switch } from "wouter";
 import ErrorBoundary from "./components/ErrorBoundary";
 import FriendPanel from "@/features/friends/FriendPanel";
 import { ThemeProvider } from "./contexts/ThemeContext";
 import Home from "@/features/home/pages/Home";
-import Login from "@/features/auth/pages/Login";
-import Products from "@/features/products/pages/Products";
-import ProductDetail from "@/features/products/pages/ProductDetail";
-import Bounties from "@/features/bounties/pages/Bounties";
-import BountyDetail from "@/features/bounties/pages/BountyDetail";
-import Dashboard from "@/features/dashboard/pages/Dashboard";
-import Favorites from "@/features/favorites/pages/Favorites";
-import ProductComparison from "@/features/products/pages/ProductComparison";
-import Admin from "@/features/admin/pages/Admin";
-import Search from "@/features/search/pages/Search";
-import Settings from "@/features/settings/pages/Settings";
+import { Loader2 } from "lucide-react";
+
+const Login = lazy(() => import("@/features/auth/pages/Login"));
+const Products = lazy(() => import("@/features/products/pages/Products"));
+const ProductDetail = lazy(() => import("@/features/products/pages/ProductDetail"));
+const Bounties = lazy(() => import("@/features/bounties/pages/Bounties"));
+const BountyDetail = lazy(() => import("@/features/bounties/pages/BountyDetail"));
+const Dashboard = lazy(() => import("@/features/dashboard/pages/Dashboard"));
+const Favorites = lazy(() => import("@/features/favorites/pages/Favorites"));
+const ProductComparison = lazy(() => import("@/features/products/pages/ProductComparison"));
+const Admin = lazy(() => import("@/features/admin/pages/Admin"));
+const Search = lazy(() => import("@/features/search/pages/Search"));
+const Settings = lazy(() => import("@/features/settings/pages/Settings"));
+const NotFound = lazy(() => import("@/features/common/pages/NotFound"));
+
+function PageLoader() {
+  return (
+    <div className="flex min-h-[60vh] items-center justify-center">
+      <Loader2 className="h-8 w-8 animate-spin text-primary" />
+    </div>
+  );
+}
 
 function Router() {
   return (
+    <Suspense fallback={<PageLoader />}>
       <Switch>
         <Route path="/" component={Home} />
         <Route path="/login" component={Login} />
@@ -36,6 +48,7 @@ function Router() {
         <Route path="/404" component={NotFound} />
         <Route component={NotFound} />
       </Switch>
+    </Suspense>
   );
 }
 

frontend/src/components/MobileNav.tsx

@@ -10,7 +10,7 @@ export function MobileNav() {
   const [isOpen, setIsOpen] = useState(false);
   const [location] = useLocation();
   const { user, isAuthenticated, logout } = useAuth();
-  const { data: unreadCountData } = useUnreadNotificationCount();
+  const { data: unreadCountData } = useUnreadNotificationCount({ enabled: isAuthenticated });
   const unreadCount = unreadCountData?.count || 0;
 
   const navItems = [

frontend/src/components/Navbar.tsx

@@ -13,7 +13,7 @@ interface NavbarProps {
 export function Navbar({ children, showLinks = true }: NavbarProps) {
   const { user, isAuthenticated, logout } = useAuth();
   const [location] = useLocation();
-  const { data: unreadCountData } = useUnreadNotificationCount();
+  const { data: unreadCountData } = useUnreadNotificationCount({ enabled: isAuthenticated });
   const unreadCount = unreadCountData?.count || 0;
 
   return (

frontend/src/features/dashboard/pages/Dashboard.tsx

@@ -54,6 +54,7 @@ import {
   Star,
   Trash2,
   Image as ImageIcon,
+  Copy,
 } from "lucide-react";
 import { formatDistanceToNow } from "date-fns";
 import { zhCN } from "date-fns/locale";
@@ -121,15 +122,18 @@ export default function Dashboard() {
   const [isNewCategory, setIsNewCategory] = useState(false);
   const [newCategory, setNewCategory] = useState({ name: "", slug: "", description: "" });
   const [isCreatingCategory, setIsCreatingCategory] = useState(false);
+  const [activeTab, setActiveTab] = useState(() =>
+    new URLSearchParams(typeof window !== "undefined" ? window.location.search : "").get("tab") || "published"
+  );
   
   const { data: publishedData, isLoading: publishedLoading } = useMyPublishedBounties();
   const { data: acceptedData, isLoading: acceptedLoading } = useMyAcceptedBounties();
-  const { data: favoritesData, isLoading: favoritesLoading } = useFavorites();
-  const { data: myProductsData, isLoading: myProductsLoading } = useMyProducts();
-  const { data: categoriesData, isLoading: categoriesLoading } = useCategories();
-  const { data: notificationsData, isLoading: notificationsLoading, refetch: refetchNotifications } = useNotifications();
+  const { data: favoritesData, isLoading: favoritesLoading } = useFavorites(undefined, { enabled: activeTab === "favorites" });
+  const { data: myProductsData, isLoading: myProductsLoading } = useMyProducts(undefined, { enabled: activeTab === "products" });
+  const { data: categoriesData, isLoading: categoriesLoading } = useCategories({ enabled: activeTab === "products" });
+  const { data: notificationsData, isLoading: notificationsLoading, refetch: refetchNotifications } = useNotifications(undefined, { enabled: activeTab === "notifications" });
   const { data: unreadCountData } = useUnreadNotificationCount();
-  const { data: notificationPreferences } = useNotificationPreferences();
+  const { data: notificationPreferences } = useNotificationPreferences({ enabled: activeTab === "notifications" });
   const imageHeroId = "dashboard-product-image-hero";
   const moveImageToFront = (activeId: string) => {
     setImageFiles((prev) => {
@@ -432,6 +436,24 @@ export default function Dashboard() {
                     {user?.name || "用户"}
                   </h1>
                   <p className="text-muted-foreground">{user?.email || "未设置邮箱"}</p>
+                  {user?.user_id && (
+                    <div className="mt-2 flex items-center gap-2">
+                      <span className="text-sm text-muted-foreground">用户 ID：</span>
+                      <code className="rounded bg-muted px-2 py-0.5 text-sm font-mono">{user.user_id}</code>
+                      <Button
+                        variant="ghost"
+                        size="icon"
+                        className="h-7 w-7 shrink-0"
+                        onClick={() => {
+                          navigator.clipboard.writeText(user.user_id);
+                          toast.success("用户 ID 已复制");
+                        }}
+                        aria-label="复制用户 ID"
+                      >
+                        <Copy className="h-3.5 w-3.5" />
+                      </Button>
+                    </div>
+                  )}
                   {user?.role === "admin" && (
                     <Badge className="mt-2" variant="secondary">管理员</Badge>
                   )}
@@ -470,12 +492,25 @@ export default function Dashboard() {
             </CardContent>
           </Card>
 
-          {/* Tabs */}
-          <Tabs defaultValue={new URLSearchParams(window.location.search).get('tab') || 'published'} className="space-y-6">
+          {/* Tabs：按需加载，仅当前 Tab 请求数据 */}
+          <Tabs
+            value={activeTab}
+            onValueChange={(v) => {
+              setActiveTab(v);
+              const url = new URL(window.location.href);
+              url.searchParams.set("tab", v);
+              window.history.replaceState({}, "", url.toString());
+            }}
+            className="space-y-6"
+          >
             <TabsList className="grid w-full grid-cols-5 lg:w-auto lg:inline-grid">
+              <TabsTrigger value="products" className="gap-2">
+                <Package className="w-4 h-4" />
+                我的商品
+              </TabsTrigger>
               <TabsTrigger value="published" className="gap-2">
                 <FileText className="w-4 h-4" />
-                我发布的
+                我的悬赏
               </TabsTrigger>
               <TabsTrigger value="accepted" className="gap-2">
                 <Trophy className="w-4 h-4" />
@@ -485,10 +520,6 @@ export default function Dashboard() {
                 <Heart className="w-4 h-4" />
                 我的收藏
               </TabsTrigger>
-              <TabsTrigger value="products" className="gap-2">
-                <Package className="w-4 h-4" />
-                我的商品
-              </TabsTrigger>
               <TabsTrigger value="notifications" className="gap-2">
                 <Bell className="w-4 h-4" />
                 通知
@@ -504,7 +535,7 @@ export default function Dashboard() {
             <TabsContent value="published">
               <Card className="card-elegant">
                 <CardHeader>
-                  <CardTitle>我发布的悬赏</CardTitle>
+                  <CardTitle>我的悬赏</CardTitle>
                   <CardDescription>管理您发布的所有悬赏任务</CardDescription>
                 </CardHeader>
                 <CardContent>

frontend/src/features/friends/FriendPanel.tsx

@@ -1,10 +1,12 @@
 import { useMemo, useState } from "react";
-import { Check, UserPlus, Users, X } from "lucide-react";
+import { Check, Inbox, Loader2, Search, UserPlus, Users, X } from "lucide-react";
 
 import { Avatar, AvatarFallback, AvatarImage } from "@/components/ui/avatar";
+import { Badge } from "@/components/ui/badge";
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
 import { ScrollArea } from "@/components/ui/scroll-area";
+import { Skeleton } from "@/components/ui/skeleton";
 import {
   Sheet,
   SheetContent,
@@ -18,6 +20,7 @@ import {
   useAcceptFriendRequest,
   useCancelFriendRequest,
   useFriends,
+  useIncomingFriendRequestCount,
   useIncomingFriendRequests,
   useMe,
   useOutgoingFriendRequests,
@@ -31,15 +34,31 @@ function getFallbackText(name?: string | null, openId?: string | null) {
   return seed ? seed[0].toUpperCase() : "?";
 }
 
+function FriendItemSkeleton() {
+  return (
+    <div className="flex items-center gap-3 rounded-xl border border-border/60 bg-card/50 px-4 py-3">
+      <Skeleton className="h-10 w-10 shrink-0 rounded-full" />
+      <div className="min-w-0 flex-1 space-y-2">
+        <Skeleton className="h-4 w-24" />
+        <Skeleton className="h-3 w-32" />
+      </div>
+    </div>
+  );
+}
+
 export default function FriendPanel() {
   const [open, setOpen] = useState(false);
   const [query, setQuery] = useState("");
   const debouncedQuery = useDebounce(query.trim(), 300);
 
   const meQuery = useMe();
-  const friendsQuery = useFriends();
-  const incomingQuery = useIncomingFriendRequests();
-  const outgoingQuery = useOutgoingFriendRequests();
+  // 仅打开面板时再请求好友/请求数据，减少首屏请求
+  const friendsQuery = useFriends({ enabled: open });
+  const incomingQuery = useIncomingFriendRequests({ enabled: open });
+  const outgoingQuery = useOutgoingFriendRequests({ enabled: open });
+  const incomingCountQuery = useIncomingFriendRequestCount({
+    enabled: !open && !!meQuery.data,
+  });
   const searchQuery = useSearchUsers(debouncedQuery, 10);
 
   const sendRequest = useSendFriendRequest();
@@ -51,18 +70,18 @@ export default function FriendPanel() {
   const incoming = incomingQuery.data ?? [];
   const outgoing = outgoingQuery.data ?? [];
 
-  const incomingCount = incoming.length;
+  const incomingCount = open ? incoming.length : (incomingCountQuery.data?.count ?? 0);
 
   const friendIdSet = useMemo(
-    () => new Set(friends.map(item => item.user.id)),
+    () => new Set(friends.map((item) => item.user.id)),
     [friends]
   );
   const outgoingIdSet = useMemo(
-    () => new Set(outgoing.map(item => item.receiver.id)),
+    () => new Set(outgoing.map((item) => item.receiver.id)),
     [outgoing]
   );
   const incomingIdSet = useMemo(
-    () => new Set(incoming.map(item => item.requester.id)),
+    () => new Set(incoming.map((item) => item.requester.id)),
     [incoming]
   );
 
@@ -71,66 +90,118 @@ export default function FriendPanel() {
       <SheetTrigger asChild>
         <Button
           size="icon-lg"
-          className="fixed right-5 bottom-24 z-50 rounded-full shadow-lg"
+          className="fixed right-5 bottom-24 z-50 rounded-full shadow-lg ring-2 ring-background/80 transition-all duration-200 hover:scale-110 hover:shadow-xl hover:ring-primary/30 active:scale-95"
           aria-label="打开好友面板"
         >
-          <Users />
+          <Users className="h-5 w-5" />
           {incomingCount > 0 ? (
-            <span className="absolute -top-1 -right-1 flex h-5 min-w-[1.25rem] items-center justify-center rounded-full bg-red-500 px-1 text-xs font-semibold text-white">
+            <span className="absolute -top-0.5 -right-0.5 flex h-5 min-w-[1.25rem] animate-pulse items-center justify-center rounded-full bg-destructive px-1.5 text-[10px] font-bold text-destructive-foreground shadow-sm">
               {incomingCount > 99 ? "99+" : incomingCount}
             </span>
           ) : null}
         </Button>
       </SheetTrigger>
-      <SheetContent className="p-0 sm:max-w-md">
-        <SheetHeader className="border-b">
-          <SheetTitle>好友</SheetTitle>
+      <SheetContent className="flex flex-col p-0 sm:max-w-md">
+        <SheetHeader className="border-b bg-gradient-to-b from-muted/40 to-transparent px-4 py-4">
+          <SheetTitle className="flex items-center gap-2 text-lg">
+            <span className="flex h-8 w-8 items-center justify-center rounded-lg bg-primary/10 text-primary">
+              <Users className="h-4 w-4" />
+            </span>
+            好友
+            {friends.length > 0 && (
+              <Badge variant="secondary" className="ml-1 font-normal">
+                {friends.length}
+              </Badge>
+            )}
+          </SheetTitle>
         </SheetHeader>
-        <div className="flex h-full flex-col gap-4 px-4 pb-4">
+        <div className="flex flex-1 flex-col gap-0 overflow-hidden px-4 pb-4">
           {!meQuery.data && !meQuery.isLoading ? (
-            <div className="pt-4 text-sm text-muted-foreground">
+            <div className="flex flex-1 flex-col items-center justify-center gap-4 py-12 text-center">
+              <div className="rounded-full bg-muted p-4">
+                <Users className="h-8 w-8 text-muted-foreground" />
+              </div>
+              <p className="text-sm text-muted-foreground">
                 登录后即可使用好友功能
+              </p>
             </div>
           ) : (
-            <Tabs defaultValue="friends" className="flex-1">
-              <TabsList className="grid w-full grid-cols-3">
-                <TabsTrigger value="friends">好友</TabsTrigger>
-                <TabsTrigger value="requests">请求</TabsTrigger>
-                <TabsTrigger value="search">搜索</TabsTrigger>
+            <Tabs defaultValue="friends" className="flex flex-1 flex-col gap-4 overflow-hidden">
+              <TabsList className="grid w-full grid-cols-3 bg-muted/60 p-1">
+                <TabsTrigger
+                  value="friends"
+                  className="gap-1.5 rounded-md transition-all data-[state=active]:bg-background data-[state=active]:shadow-sm"
+                >
+                  <Users className="h-3.5 w-3.5" />
+                  好友
+                </TabsTrigger>
+                <TabsTrigger
+                  value="requests"
+                  className="relative gap-1.5 rounded-md transition-all data-[state=active]:bg-background data-[state=active]:shadow-sm"
+                >
+                  <Inbox className="h-3.5 w-3.5" />
+                  请求
+                  {incomingCount > 0 && (
+                    <span className="absolute -right-0.5 -top-0.5 flex h-4 min-w-[1rem] items-center justify-center rounded-full bg-destructive px-1 text-[10px] font-medium text-destructive-foreground">
+                      {incomingCount}
+                    </span>
+                  )}
+                </TabsTrigger>
+                <TabsTrigger
+                  value="search"
+                  className="gap-1.5 rounded-md transition-all data-[state=active]:bg-background data-[state=active]:shadow-sm"
+                >
+                  <Search className="h-3.5 w-3.5" />
+                  搜索
+                </TabsTrigger>
               </TabsList>
 
-              <TabsContent value="friends" className="flex-1">
-                <ScrollArea className="h-[calc(100vh-260px)] pr-2">
-                  {friends.length === 0 ? (
-                    <div className="py-6 text-sm text-muted-foreground">
-                      暂无好友
+              <TabsContent value="friends" className="mt-0 flex-1 overflow-hidden data-[state=inactive]:hidden">
+                <ScrollArea className="h-full pr-2">
+                  {friendsQuery.isLoading ? (
+                    <div className="space-y-3">
+                      {[1, 2, 3, 4].map((i) => (
+                        <FriendItemSkeleton key={i} />
+                      ))}
+                    </div>
+                  ) : friends.length === 0 ? (
+                    <div className="flex flex-col items-center justify-center gap-4 py-12 text-center">
+                      <div className="rounded-2xl bg-muted/50 p-6">
+                        <Users className="h-10 w-10 text-muted-foreground" />
+                      </div>
+                      <div>
+                        <p className="font-medium text-foreground">暂无好友</p>
+                        <p className="mt-1 text-sm text-muted-foreground">
+                          在「搜索」中添加好友，或等待对方接受你的请求
+                        </p>
+                      </div>
                     </div>
                   ) : (
-                    <div className="space-y-3">
-                      {friends.map(item => (
+                    <div className="space-y-2">
+                      {friends.map((item) => (
                         <div
                           key={item.request_id}
-                          className="flex items-center justify-between gap-3 rounded-md border px-3 py-2"
+                          className="group flex items-center justify-between gap-3 rounded-xl border border-border/60 bg-card/50 px-4 py-3 transition-all duration-200 hover:border-border hover:bg-muted/30 hover:shadow-sm"
                         >
-                          <div className="flex items-center gap-3">
-                            <Avatar>
+                          <div className="flex min-w-0 items-center gap-3">
+                            <Avatar className="h-10 w-10 ring-2 ring-background transition-transform duration-200 group-hover:ring-primary/20 group-hover:scale-105">
                               <AvatarImage src={item.user.avatar || undefined} />
-                              <AvatarFallback>
+                              <AvatarFallback className="text-sm font-medium">
                                 {getFallbackText(item.user.name, item.user.open_id)}
                               </AvatarFallback>
                             </Avatar>
-                            <div>
-                              <div className="text-sm font-medium">
+                            <div className="min-w-0">
+                              <div className="truncate text-sm font-medium">
                                 {item.user.name || item.user.open_id}
                               </div>
-                              <div className="text-xs text-muted-foreground">
-                                {item.user.open_id}
+                              <div className="truncate text-xs text-muted-foreground">
+                                {item.user.user_id || item.user.open_id}
                               </div>
                             </div>
                           </div>
-                          <div className="text-xs text-muted-foreground">
+                          <Badge variant="secondary" className="shrink-0 text-xs font-normal">
                             已是好友
-                          </div>
+                          </Badge>
                         </div>
                       ))}
                     </div>
@@ -138,143 +209,198 @@ export default function FriendPanel() {
                 </ScrollArea>
               </TabsContent>
 
-              <TabsContent value="requests" className="flex-1">
-                <ScrollArea className="h-[calc(100vh-260px)] pr-2">
-                  <div className="space-y-4">
-                    <div>
-                      <div className="mb-2 text-xs font-semibold text-muted-foreground">
+              <TabsContent value="requests" className="mt-0 flex-1 overflow-hidden data-[state=inactive]:hidden">
+                <ScrollArea className="h-full pr-2">
+                  <div className="space-y-6">
+                    <section>
+                      <div className="mb-3 flex items-center gap-2">
+                        <Inbox className="h-4 w-4 text-muted-foreground" />
+                        <span className="text-xs font-semibold uppercase tracking-wide text-muted-foreground">
                           收到的请求
+                        </span>
+                        {incoming.length > 0 && (
+                          <Badge variant="secondary" className="text-[10px]">
+                            {incoming.length}
+                          </Badge>
+                        )}
                       </div>
-                      {incoming.length === 0 ? (
-                        <div className="text-sm text-muted-foreground">
-                          暂无请求
+                      {incomingQuery.isLoading ? (
+                        <div className="space-y-3">
+                          {[1, 2].map((i) => (
+                            <FriendItemSkeleton key={i} />
+                          ))}
+                        </div>
+                      ) : incoming.length === 0 ? (
+                        <div className="rounded-xl border border-dashed border-border/60 bg-muted/20 py-8 text-center text-sm text-muted-foreground">
+                          暂无新请求
                         </div>
                       ) : (
-                        <div className="space-y-3">
-                          {incoming.map(item => (
+                        <div className="space-y-2">
+                          {incoming.map((item) => (
                             <div
                               key={item.id}
-                              className="flex items-center justify-between gap-3 rounded-md border px-3 py-2"
+                              className="group flex items-center justify-between gap-3 rounded-xl border border-border/60 bg-card/50 px-4 py-3 transition-all duration-200 hover:border-border hover:bg-muted/30 hover:shadow-sm"
                             >
-                              <div className="flex items-center gap-3">
-                                <Avatar>
+                              <div className="flex min-w-0 items-center gap-3">
+                                <Avatar className="h-10 w-10 ring-2 ring-background transition-transform duration-200 group-hover:scale-105">
                                   <AvatarImage src={item.requester.avatar || undefined} />
-                                  <AvatarFallback>
+                                  <AvatarFallback className="text-sm font-medium">
                                     {getFallbackText(
                                       item.requester.name,
                                       item.requester.open_id
                                     )}
                                   </AvatarFallback>
                                 </Avatar>
-                                <div>
-                                  <div className="text-sm font-medium">
+                                <div className="min-w-0">
+                                  <div className="truncate text-sm font-medium">
                                     {item.requester.name || item.requester.open_id}
                                   </div>
-                                  <div className="text-xs text-muted-foreground">
-                                    {item.requester.open_id}
+                                  <div className="truncate text-xs text-muted-foreground">
+                                    {item.requester.user_id || item.requester.open_id}
                                   </div>
                                 </div>
                               </div>
-                              <div className="flex gap-2">
+                              <div className="flex shrink-0 gap-1.5">
                                 <Button
-                                  size="icon-sm"
+                                  size="icon"
+                                  className="h-8 w-8 rounded-lg transition-all hover:scale-105 active:scale-95"
                                   onClick={() => acceptRequest.mutate(item.id)}
                                   disabled={acceptRequest.isPending}
                                   aria-label="接受好友请求"
                                 >
-                                  <Check />
+                                  {acceptRequest.isPending ? (
+                                    <Loader2 className="h-4 w-4 animate-spin" />
+                                  ) : (
+                                    <Check className="h-4 w-4" />
+                                  )}
                                 </Button>
                                 <Button
                                   variant="secondary"
-                                  size="icon-sm"
+                                  size="icon"
+                                  className="h-8 w-8 rounded-lg transition-all hover:scale-105 active:scale-95"
                                   onClick={() => rejectRequest.mutate(item.id)}
                                   disabled={rejectRequest.isPending}
                                   aria-label="拒绝好友请求"
                                 >
-                                  <X />
+                                  <X className="h-4 w-4" />
                                 </Button>
                               </div>
                             </div>
                           ))}
                         </div>
                       )}
-                    </div>
+                    </section>
 
-                    <div>
-                      <div className="mb-2 text-xs font-semibold text-muted-foreground">
+                    <section>
+                      <div className="mb-3 flex items-center gap-2">
+                        <UserPlus className="h-4 w-4 text-muted-foreground" />
+                        <span className="text-xs font-semibold uppercase tracking-wide text-muted-foreground">
                           我发出的请求
+                        </span>
+                        {outgoing.length > 0 && (
+                          <Badge variant="outline" className="text-[10px]">
+                            {outgoing.length}
+                          </Badge>
+                        )}
                       </div>
-                      {outgoing.length === 0 ? (
-                        <div className="text-sm text-muted-foreground">
-                          暂无请求
+                      {outgoingQuery.isLoading ? (
+                        <div className="space-y-3">
+                          {[1].map((i) => (
+                            <FriendItemSkeleton key={i} />
+                          ))}
+                        </div>
+                      ) : outgoing.length === 0 ? (
+                        <div className="rounded-xl border border-dashed border-border/60 bg-muted/20 py-8 text-center text-sm text-muted-foreground">
+                          暂无发出的请求
                         </div>
                       ) : (
-                        <div className="space-y-3">
-                          {outgoing.map(item => (
+                        <div className="space-y-2">
+                          {outgoing.map((item) => (
                             <div
                               key={item.id}
-                              className="flex items-center justify-between gap-3 rounded-md border px-3 py-2"
+                              className="group flex items-center justify-between gap-3 rounded-xl border border-border/60 bg-card/50 px-4 py-3 transition-all duration-200 hover:border-border hover:bg-muted/30 hover:shadow-sm"
                             >
-                              <div className="flex items-center gap-3">
-                                <Avatar>
+                              <div className="flex min-w-0 items-center gap-3">
+                                <Avatar className="h-10 w-10 ring-2 ring-background transition-transform duration-200 group-hover:scale-105">
                                   <AvatarImage src={item.receiver.avatar || undefined} />
-                                  <AvatarFallback>
+                                  <AvatarFallback className="text-sm font-medium">
                                     {getFallbackText(
                                       item.receiver.name,
                                       item.receiver.open_id
                                     )}
                                   </AvatarFallback>
                                 </Avatar>
-                                <div>
-                                  <div className="text-sm font-medium">
+                                <div className="min-w-0">
+                                  <div className="truncate text-sm font-medium">
                                     {item.receiver.name || item.receiver.open_id}
                                   </div>
-                                  <div className="text-xs text-muted-foreground">
-                                    {item.receiver.open_id}
+                                  <div className="truncate text-xs text-muted-foreground">
+                                    {item.receiver.user_id || item.receiver.open_id}
                                   </div>
                                 </div>
                               </div>
                               <Button
                                 variant="secondary"
                                 size="sm"
+                                className="shrink-0 transition-all hover:scale-105 active:scale-95"
                                 onClick={() => cancelRequest.mutate(item.id)}
                                 disabled={cancelRequest.isPending}
                               >
-                                取消
+                                {cancelRequest.isPending ? (
+                                  <Loader2 className="h-3.5 w-3.5 animate-spin" />
+                                ) : (
+                                  "取消"
+                                )}
                               </Button>
                             </div>
                           ))}
                         </div>
                       )}
-                    </div>
+                    </section>
                   </div>
                 </ScrollArea>
               </TabsContent>
 
-              <TabsContent value="search" className="flex-1">
-                <div className="mb-3">
+              <TabsContent value="search" className="mt-0 flex-1 overflow-hidden data-[state=inactive]:hidden">
+                    <div className="mb-4">
+                  <div className="relative">
+                    <Search className="absolute left-3 top-1/2 h-4 w-4 -translate-y-1/2 text-muted-foreground" />
                     <Input
-                    placeholder="输入用户名或账号搜索"
+                      placeholder="输入用户 ID、用户名或账号搜索"
                       value={query}
-                    onChange={event => setQuery(event.target.value)}
+                      onChange={(e) => setQuery(e.target.value)}
+                      className="h-10 rounded-xl pl-9 pr-4 transition-all focus-visible:ring-2"
                     />
                   </div>
-                <ScrollArea className="h-[calc(100vh-300px)] pr-2">
+                </div>
+                <ScrollArea className="h-[calc(100%-3.5rem)] pr-2">
                   {debouncedQuery.length === 0 ? (
-                    <div className="py-6 text-sm text-muted-foreground">
+                    <div className="flex flex-col items-center justify-center gap-4 py-12 text-center">
+                      <div className="rounded-2xl bg-muted/50 p-6">
+                        <Search className="h-10 w-10 text-muted-foreground" />
+                      </div>
+                      <p className="text-sm text-muted-foreground">
                         请输入关键词搜索用户
+                      </p>
                     </div>
                   ) : searchQuery.isLoading ? (
-                    <div className="py-6 text-sm text-muted-foreground">
-                      搜索中...
+                    <div className="space-y-3">
+                      {[1, 2, 3, 4, 5].map((i) => (
+                        <FriendItemSkeleton key={i} />
+                      ))}
                     </div>
                   ) : (searchQuery.data ?? []).length === 0 ? (
-                    <div className="py-6 text-sm text-muted-foreground">
+                    <div className="flex flex-col items-center justify-center gap-4 py-12 text-center">
+                      <div className="rounded-2xl bg-muted/50 p-6">
+                        <Users className="h-10 w-10 text-muted-foreground" />
+                      </div>
+                      <p className="text-sm text-muted-foreground">
                         没有找到匹配用户
+                      </p>
                     </div>
                   ) : (
-                    <div className="space-y-3">
-                      {(searchQuery.data ?? []).map(user => {
+                    <div className="space-y-2">
+                      {(searchQuery.data ?? []).map((user) => {
                         const isFriend = friendIdSet.has(user.id);
                         const isOutgoing = outgoingIdSet.has(user.id);
                         const isIncoming = incomingIdSet.has(user.id);
@@ -290,31 +416,38 @@ export default function FriendPanel() {
                         return (
                           <div
                             key={user.id}
-                            className="flex items-center justify-between gap-3 rounded-md border px-3 py-2"
+                            className="group flex items-center justify-between gap-3 rounded-xl border border-border/60 bg-card/50 px-4 py-3 transition-all duration-200 hover:border-border hover:bg-muted/30 hover:shadow-sm"
                           >
-                            <div className="flex items-center gap-3">
-                              <Avatar>
+                            <div className="flex min-w-0 items-center gap-3">
+                              <Avatar className="h-10 w-10 ring-2 ring-background transition-transform duration-200 group-hover:ring-primary/20 group-hover:scale-105">
                                 <AvatarImage src={user.avatar || undefined} />
-                                <AvatarFallback>
+                                <AvatarFallback className="text-sm font-medium">
                                   {getFallbackText(user.name, user.open_id)}
                                 </AvatarFallback>
                               </Avatar>
-                              <div>
-                                <div className="text-sm font-medium">
+                              <div className="min-w-0">
+                                <div className="truncate text-sm font-medium">
                                   {user.name || user.open_id}
                                 </div>
-                                <div className="text-xs text-muted-foreground">
-                                  {user.open_id}
+                                <div className="truncate text-xs text-muted-foreground">
+                                  {user.user_id || user.open_id}
                                 </div>
                               </div>
                             </div>
                             <Button
                               size="sm"
                               variant={disabled ? "secondary" : "default"}
-                              onClick={() => sendRequest.mutate({ receiver_id: user.id })}
+                              className="shrink-0 gap-1.5 transition-all hover:scale-105 active:scale-95"
+                              onClick={() =>
+                                sendRequest.mutate({ receiver_id: user.id })
+                              }
                               disabled={disabled || sendRequest.isPending}
                             >
-                              <UserPlus />
+                              {sendRequest.isPending ? (
+                                <Loader2 className="h-3.5 w-3.5 animate-spin" />
+                              ) : (
+                                <UserPlus className="h-3.5 w-3.5" />
+                              )}
                               {label}
                             </Button>
                           </div>

frontend/src/hooks/useApi.ts

@@ -111,27 +111,40 @@ export function useChangePassword() {
 
 // ==================== Friends Hooks ====================
 
-export function useFriends() {
+export function useFriends(options?: { enabled?: boolean }) {
   return useQuery({
     queryKey: ['friends'],
     queryFn: friendApi.list,
     staleTime: shortStaleTime,
+    enabled: options?.enabled !== false,
   });
 }
 
-export function useIncomingFriendRequests() {
+export function useIncomingFriendRequests(options?: { enabled?: boolean }) {
   return useQuery({
     queryKey: ['friends', 'requests', 'incoming'],
     queryFn: friendApi.incoming,
     staleTime: shortStaleTime,
+    enabled: options?.enabled !== false,
   });
 }
 
-export function useOutgoingFriendRequests() {
+export function useOutgoingFriendRequests(options?: { enabled?: boolean }) {
   return useQuery({
     queryKey: ['friends', 'requests', 'outgoing'],
     queryFn: friendApi.outgoing,
     staleTime: shortStaleTime,
+    enabled: options?.enabled !== false,
+  });
+}
+
+/** 仅请求待处理好友数量，用于角标（不拉完整列表） */
+export function useIncomingFriendRequestCount(options?: { enabled?: boolean }) {
+  return useQuery({
+    queryKey: ['friends', 'requests', 'incoming', 'count'],
+    queryFn: () => friendApi.incomingCount(),
+    staleTime: shortStaleTime,
+    enabled: options?.enabled !== false,
   });
 }
 
@@ -192,11 +205,12 @@ export function useSearchUsers(q: string, limit?: number) {
 
 // ==================== Category Hooks ====================
 
-export function useCategories() {
+export function useCategories(options?: { enabled?: boolean }) {
   return useQuery({
     queryKey: ['categories'],
     queryFn: categoryApi.list,
     staleTime: staticStaleTime,
+    enabled: options?.enabled !== false,
   });
 }
 
@@ -266,7 +280,7 @@ export function useProductWithPrices(id: number) {
   });
 }
 
-export function useProductSearch(q: string, params?: { page?: number; category_id?: number; min_price?: number; max_price?: number; sort_by?: string }) {
+export function useProductSearch(q: string, params?: { page?: number; category_id?: number; user_id?: string; min_price?: number; max_price?: number; sort_by?: string }) {
   const debouncedQuery = useDebouncedValue(q, 300);
   return useQuery({
     queryKey: ['products', 'search', debouncedQuery, params],
@@ -553,12 +567,13 @@ export function useReviewExtensionRequest() {
 
 // ==================== Favorites Hooks ====================
 
-export function useFavorites(params?: { tag_id?: number; page?: number }) {
+export function useFavorites(params?: { tag_id?: number; page?: number }, options?: { enabled?: boolean }) {
   return useQuery({
     queryKey: ['favorites', params],
     queryFn: () => favoriteApi.list(params),
     staleTime: shortStaleTime,
     placeholderData: keepPreviousData,
+    enabled: options?.enabled !== false,
   });
 }
 
@@ -711,12 +726,13 @@ export function useAllPriceMonitors(page?: number) {
 
 // ==================== Notification Hooks ====================
 
-export function useNotifications(params?: { is_read?: boolean; type?: string; start?: string; end?: string; page?: number }) {
+export function useNotifications(params?: { is_read?: boolean; type?: string; start?: string; end?: string; page?: number }, options?: { enabled?: boolean }) {
   return useQuery({
     queryKey: ['notifications', params],
     queryFn: () => notificationApi.list(params),
     staleTime: shortStaleTime,
     placeholderData: keepPreviousData,
+    enabled: options?.enabled !== false,
   });
 }
 
@@ -730,11 +746,12 @@ export function useGlobalSearch(q: string, limit = 10) {
   });
 }
 
-export function useUnreadNotificationCount() {
+export function useUnreadNotificationCount(options?: { enabled?: boolean }) {
   return useQuery({
     queryKey: ['notifications', 'unread-count'],
     queryFn: notificationApi.unreadCount,
     staleTime: shortStaleTime,
+    enabled: options?.enabled !== false,
   });
 }
 
@@ -760,11 +777,12 @@ export function useMarkAllNotificationsAsRead() {
   });
 }
 
-export function useNotificationPreferences() {
+export function useNotificationPreferences(options?: { enabled?: boolean }) {
   return useQuery({
     queryKey: ['notifications', 'preferences'],
     queryFn: notificationApi.getPreferences,
     staleTime: shortStaleTime,
+    enabled: options?.enabled !== false,
   });
 }
 
@@ -902,10 +920,11 @@ export function useUpdateAdminProductImages() {
 
 // ==================== My Products Hooks ====================
 
-export function useMyProducts(status?: string) {
+export function useMyProducts(status?: string, options?: { enabled?: boolean }) {
   return useQuery({
     queryKey: ['products', 'my', status],
     queryFn: () => productApi.myProducts(status),
     staleTime: shortStaleTime,
+    enabled: options?.enabled !== false,
   });
 }

frontend/src/lib/api/friends.ts

@@ -4,6 +4,7 @@ import type { Friend, FriendRequest, UserBrief } from "../types";
 export const friendApi = {
   list: () => api.get<Friend[]>("/friends/").then((r) => r.data),
   incoming: () => api.get<FriendRequest[]>("/friends/requests/incoming").then((r) => r.data),
+  incomingCount: () => api.get<{ count: number }>("/friends/requests/incoming/count").then((r) => r.data),
   outgoing: () => api.get<FriendRequest[]>("/friends/requests/outgoing").then((r) => r.data),
   sendRequest: (data: { receiver_id: number }) =>
     api.post<FriendRequest>("/friends/requests", data).then((r) => r.data),

frontend/src/lib/api/products.ts

@@ -20,7 +20,7 @@ export const productApi = {
   },
   get: (id: number) => api.get<Product>(`/products/${id}`).then((r) => r.data),
   getWithPrices: (id: number) => api.get<ProductWithPrices>(`/products/${id}/with-prices`).then((r) => r.data),
-  search: (params: { q: string; page?: number; category_id?: number; min_price?: number; max_price?: number; sort_by?: string }) =>
+  search: (params: { q: string; page?: number; category_id?: number; user_id?: string; min_price?: number; max_price?: number; sort_by?: string }) =>
     api.get<PaginatedResponse<ProductWithPrices>>(
       "/products/search/",
       { params, timeout: searchTimeout }

frontend/src/lib/types.ts

@@ -1,6 +1,8 @@
 export interface User {
   id: number;
   open_id: string;
+  /** 可分享的用户ID，用于好友搜索、商品搜索等 */
+  user_id: string | null;
   name: string | null;
   email: string | null;
   avatar: string | null;
@@ -14,6 +16,8 @@ export interface User {
 export interface UserBrief {
   id: number;
   open_id: string;
+  /** 可分享的用户ID */
+  user_id: string | null;
   name: string | null;
   email: string | null;
   avatar: string | null;