fix: 프로필 카드 오버플로우와 프리뷰 풀 노출 정리

frontend/src/views/TierEditorView.vue

@@ -1396,14 +1396,6 @@ onUnmounted(() => {
           </div>
         </div>
       </div>
-      <div v-if="pool.length" class="previewOnly__pool">
-        <div class="previewOnly__poolTitle">남은 아이템</div>
-        <div class="previewOnly__poolGrid">
-          <div v-for="id in pool" :key="id" class="previewOnly__poolItem previewOnly__poolItem--inactive">
-            <img :src="resolveItemSrc(itemsById[id])" class="thumb" :alt="itemsById[id]?.label || id" />
-          </div>
-        </div>
-      </div>
       <div class="previewOnly__footer">
         <span>{{ effectiveAuthorName }}</span>
         <span>{{ formatExportDate(fallbackTimestamp) }}</span>

frontend/src/views/UserProfileView.vue

@@ -333,8 +333,10 @@ watch(userId, loadProfile, { immediate: true })
   color: inherit;
   padding: 0;
   display: grid;
+  overflow: hidden;
 }
 .boardCard__thumbWrap {
+  min-width: 0;
   width: 100%;
   aspect-ratio: 16 / 9;
   padding: 14px 14px 0;
@@ -363,6 +365,7 @@ watch(userId, loadProfile, { immediate: true })
   padding: 16px 18px 18px;
   display: grid;
   gap: 8px;
+  overflow: hidden;
 }
 .boardCard__titleRow,
 .boardCard__metaRow {