Display bid history for media outlet auctions and fetch bid data

Add a new API endpoint and integrate bid history display into the media outlet auction page.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 069d4324-6c40-4355-955e-c714a50de1ea
Replit-Commit-Checkpoint-Type: intermediate_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/3df548ff-50ae-432f-9be4-25d34eccc983/069d4324-6c40-4355-955e-c714a50de1ea/6XTzcDL

client/src/pages/MediaOutletAuction.tsx

@@ -30,6 +30,11 @@ export default function MediaOutletAuction() {
     enabled: !!params?.slug
   });
 
+  const { data: bids = [], isLoading: bidsLoading } = useQuery<Bid[]>({
+    queryKey: ["/api/auctions", auction?.id, "bids"],
+    enabled: !!auction?.id
+  });
+
   const placeBidMutation = useMutation({
     mutationFn: async (bidData: { amount: number; qualityScore?: number }) => {
       return apiRequest("POST", `/api/media-outlets/${params?.slug}/auction/bids`, bidData);
@@ -42,6 +47,7 @@ export default function MediaOutletAuction() {
       setBidAmount("");
       setQualityScore("");
       queryClient.invalidateQueries({ queryKey: ["/api/media-outlets", params?.slug, "auction"] });
+      queryClient.invalidateQueries({ queryKey: ["/api/auctions", auction?.id, "bids"] });
     },
     onError: (error: any) => {
       toast({
@@ -363,6 +369,88 @@ export default function MediaOutletAuction() {
           </Card>
         </div>
 
+        {/* Bid History */}
+        <Card className="mt-8">
+          <CardHeader>
+            <CardTitle className="flex items-center space-x-2">
+              <TrendingUp className="h-5 w-5" />
+              <span>입찰 내역</span>
+              <Badge variant="outline">{bids.length}건</Badge>
+            </CardTitle>
+          </CardHeader>
+          <CardContent>
+            {bidsLoading ? (
+              <div className="space-y-4">
+                {Array.from({ length: 5 }).map((_, i) => (
+                  <div key={i} className="animate-pulse flex justify-between items-center p-3 border rounded">
+                    <div className="h-4 bg-gray-300 rounded w-1/3"></div>
+                    <div className="h-4 bg-gray-300 rounded w-1/4"></div>
+                  </div>
+                ))}
+              </div>
+            ) : bids.length > 0 ? (
+              <div className="space-y-3 max-h-96 overflow-y-auto">
+                {(() => {
+                  // Sort bids by time (newest first)
+                  const sortedBids = [...bids].sort((a, b) => 
+                    new Date(b.createdAt!).getTime() - new Date(a.createdAt!).getTime()
+                  );
+                  
+                  // Find highest bid by amount
+                  const highestBid = bids.reduce((highest, current) => 
+                    parseFloat(current.amount) > parseFloat(highest.amount) ? current : highest
+                  , bids[0]);
+                  
+                  return sortedBids.map((bid, index) => (
+                  <div 
+                    key={bid.id} 
+                    className={`flex justify-between items-center p-4 border rounded-lg ${
+                      index === 0 ? 'bg-green-50 border-green-200' : 'bg-gray-50 border-gray-200'
+                    }`}
+                    data-testid={`bid-item-${bid.id}`}
+                  >
+                    <div className="flex items-center space-x-4">
+                      <div>
+                        <div className="flex items-center space-x-2">
+                          <span className="font-bold text-lg" data-testid={`bid-amount-${bid.id}`}>
+                            {formatCurrency(parseFloat(bid.amount))}
+                          </span>
+                          {bid.id === highestBid.id && (
+                            <Badge className="bg-green-600">최고가</Badge>
+                          )}
+                        </div>
+                        <div className="text-sm text-muted-foreground">
+                          입찰자: <span data-testid={`bid-bidder-${bid.id}`}>{bid.bidderId.slice(0, 8)}***</span>
+                          {bid.qualityScore !== undefined && bid.qualityScore !== null && (
+                            <span className="ml-2">품질점수: {bid.qualityScore}</span>
+                          )}
+                        </div>
+                      </div>
+                    </div>
+                    <div className="text-right text-sm text-muted-foreground">
+                      <span data-testid={`bid-date-${bid.id}`}>
+                        {new Date(bid.createdAt!).toLocaleDateString('ko-KR', {
+                          month: 'short',
+                          day: 'numeric',
+                          hour: '2-digit',
+                          minute: '2-digit'
+                        })}
+                      </span>
+                    </div>
+                  </div>
+                  ));
+                })()}
+              </div>
+            ) : (
+              <div className="text-center py-8 text-muted-foreground">
+                <TrendingUp className="h-12 w-12 mx-auto mb-4 opacity-50" />
+                <p>아직 입찰 내역이 없습니다</p>
+                <p className="text-sm">첫 번째 입찰자가 되어보세요!</p>
+              </div>
+            )}
+          </CardContent>
+        </Card>
+
         {/* Auction Description */}
         <Card className="mt-8">
           <CardHeader>