feat(listings): 商品详情页增加等级展示

- PC 端账号资料区增加烽火等级、体力等级、负重等级
- 移动端账号资料区补充烽火等级展示

frontend/src/features/listings/views/ListingDetailView.vue

@@ -179,10 +179,14 @@ const accountRows = computed(() => {
   if (!listing.value) return []
   const regions = assetRegions(listing.value)
   const secretKD = readAssetNumber(listing.value, 'secret_kd')
+  const fireLevel = readAssetNumber(listing.value, 'fire_level')
   return [
     { label: '所属区服', value: getServerRegion(listing.value) || '--' },
     { label: '上号方式', value: getLoginMethod(listing.value) || '--' },
     { label: '游戏段位', value: listing.value.rank_level || '--' },
+    { label: '烽火等级', value: fireLevel > 0 ? `${fireLevel}级` : '--' },
+    { label: '体力等级', value: readAssetString(listing.value, 'stamina_level') || '--' },
+    { label: '负重等级', value: readAssetString(listing.value, 'load_level') || '--' },
     { label: '绝密KD', value: secretKD > 0 ? formatAssetNumber(secretKD) : '--' },
     { label: 'M单价', value: formatRatio(listing.value) },
     { label: '方便上号', value: getOnlineTimeText(listing.value) || '--' },

frontend/src/features/listings/views/MobileListingDetailView.vue

@@ -376,6 +376,16 @@ function handleToggleFavorite() {
             {{ chip.label }}:{{ chip.value }}
           </span>
         </div>
+        <div class="info-line">
+          <span class="info-label">烽火等级</span>
+          <span class="info-text">
+            {{
+              readAssetNumber(listing, 'fire_level') > 0
+                ? `${readAssetNumber(listing, 'fire_level')}级`
+                : '--'
+            }}
+          </span>
+        </div>
         <div class="info-line">
           <span class="info-label">M单价</span>
           <span class="info-text">{{ formatRatio(listing) }}</span>