feat(core): Wave 4 P2 — 账户页 mono 字号分级 + 商品卡缺三视图徽标

- account-page.css:25 处纯 mono 装饰字号对照 V1 account.html 收回 9-11.5px 分级
  (原统一 12px);分页器等无 V1 锚点的保持现状不瞎改
- products.tsx:商品卡补「缺三视图」徽标(复用现成 .tri-missing-badge,真实字段判定
  !cover_asset && 无图,判不准则不显示不造假);stat 生成选择 modal 超 P2 范围跳过

验证: tsc 0 · build 0 · 14 路由回归 boot 0 报错 · 登录 702ms 无邮箱

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

core/frontend/src/routes/products.tsx

@@ -311,6 +311,10 @@ export function ProductCard({ product, coverUrl = "", videoCount = 0, onOpen, on
   // 优先显示真实上传/采用的主图;无真图时回退到按标题匹配的 mock 占位
   const mock = productCover(product.title);
   const assetCount = product.images?.length || 0;
+  // 缺三视图:采用三视图后端会把它落成 product.cover_asset(见 App.tsx onAdoptTriView)。
+  // 列表数据里无法逐条反查 tri_view 素材,只能用真实字段:既无采用封面(cover_asset)、又无上传主图(images)
+  // → 判定该商品尚未补三视图(对齐 V1「新建商品卡显缺三视图」);一旦有封面/图则判不准,不显示(别瞎标)。
+  const missingTri = !product.cover_asset && assetCount === 0;
   return (
     <div className={`product-card${selected ? " selected" : ""}`} data-cat={product.category} data-name={product.title} role="button" tabIndex={0} aria-pressed={editMode ? selected : undefined} onClick={onOpen} onKeyDown={(event) => event.key === "Enter" && onOpen()}>
       <span className="card-check" aria-hidden="true"><svg viewBox="0 0 16 16" fill="none" stroke="currentColor" strokeWidth="2.5"><polyline points="3 8 7 12 13 4" /></svg></span>
@@ -318,7 +322,23 @@ export function ProductCard({ product, coverUrl = "", videoCount = 0, onOpen, on
       {coverUrl ? (
         <div className="product-thumb has-real-media"><img src={coverUrl} alt={product.title} loading="lazy" /></div>
       ) : (
-        <div className={`placeholder product-thumb${mock ? " has-mock-media" : ""}`} style={mock ? prodMock(mock) : undefined}><span className="ph-frame">{product.title} · 1200×800</span></div>
+        <div className={`placeholder product-thumb${mock ? " has-mock-media" : ""}`} style={mock ? prodMock(mock) : undefined}>
+          {missingTri && (
+            <span className="tri-missing-badge" tabIndex={0} role="button" aria-label="缺三视图,查看说明" onClick={(event) => event.stopPropagation()} onKeyDown={(event) => { if (event.key === "Enter" || event.key === " ") event.stopPropagation(); }}>
+              <span className="ico" aria-hidden="true"></span>
+              <span className="lbl-mono">缺三视图</span>
+              <span className="tri-missing-pop" role="tooltip">
+                <span className="pop-h">
+                  <svg width="11" height="11" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.5" strokeLinecap="round" strokeLinejoin="round"><path d="M12 9v4M12 17h.01" /><path d="M10.3 3.86 1.82 18a2 2 0 0 0 1.71 3h16.94a2 2 0 0 0 1.71-3L13.71 3.86a2 2 0 0 0-3.42 0z" /></svg>
+                  MISSING TRI-VIEW
+                </span>
+                <span className="pop-body">该商品还未生成 <b>正 / 侧 / 背</b> 三视图。直接生成图片或视频,模型缺少多角度参考,角色一致性、姿态稳定性可能下降。</span>
+                <span className="pop-tip">建议:进入 <b>商品详情</b> 先补齐三视图,再发起后续生成。</span>
+              </span>
+            </span>
+          )}
+          <span className="ph-frame">{product.title} · 1200×800</span>
+        </div>
       )}
       <div className="product-body">
         <div className="product-name">{product.title}</div>