feat(creator): 커뮤니티 아이템 표시를 통일한다

SodaLive/Sources/V2/CreatorChannel/Community/Components/CreatorChannelCommunityGridItem.swift

@@ -3,26 +3,22 @@ import SwiftUI
 struct CreatorChannelCommunityGridItem: View {
     let post: CreatorChannelCommunityPostItem
     let isOwnPost: Bool
-    let onTapPurchase: () -> Void
     let onTapDetail: () -> Void
 
     var body: some View {
         GeometryReader { proxy in
             ZStack {
                 if isPaidLocked {
-                    Button(action: onTapPurchase) {
-                        Color.gray400
-                            .overlay(paidPriceOverlay)
-                    }
-                    .buttonStyle(.plain)
+                    Color.gray800
+                        .overlay(paidPriceOverlay)
                 } else {
                     tileContent(proxy: proxy)
-                        .contentShape(Rectangle())
-                        .onTapGesture(perform: onTapDetail)
                 }
             }
             .frame(width: proxy.size.width, height: proxy.size.width)
             .clipped()
+            .contentShape(Rectangle())
+            .onTapGesture(perform: onTapDetail)
             .overlay(alignment: .topTrailing) {
                 if post.isPinned {
                     Image("ic_pin")
@@ -92,3 +88,32 @@ struct CreatorChannelCommunityGridItem: View {
         return String(content.prefix(18))
     }
 }
+
+struct CreatorChannelCommunityGridItem_Previews: PreviewProvider {
+    static var previews: some View {
+        CreatorChannelCommunityGridItem(
+            post: CreatorChannelCommunityPostItem(
+                postId: 1,
+                creatorId: 10,
+                creatorNickname: "크리에이터 이름",
+                creatorProfileUrl: "https://picsum.photos/600",
+                createdAtUtc: "2026-08-10T00:00:00Z",
+                content: "유료 커뮤니티 게시글",
+                imageUrl: nil,
+                audioUrl: nil,
+                price: 30,
+                isCommentAvailable: true,
+                likeCount: 5,
+                commentCount: 2,
+                isPinned: true,
+                existOrdered: false,
+                isLiked: false
+            ),
+            isOwnPost: false,
+            onTapDetail: {}
+        )
+        .frame(width: 134, height: 134)
+        .background(Color.black)
+        .previewLayout(.sizeThatFits)
+    }
+}