feat(images): 期2 图片趴三类 — 模特上身图/平台套图/自由创作 归类+成组+接模特库

后端:
- 独立生图三类归类:model+product→model_tryon(模特上身图,引用模特库,不送审) / cover→platform_kit(平台套图) / image→free_create(自由创作);生成演员(model 无 product)仍→person(视频角色,留期3)
- 成组:每次提交一个 batch_id 串起整批,落 asset.metadata;另记 mode + model_entity_id(上身图溯源模特库)
- generate-image 端点透传 model_entity_id;资产库 _tab_q+summary 加 tryon/kits/creations 三类桶
- 单测 StandaloneCategoryTests 直跑 worker 验四态归类全绿(绕开异步 .delay)

前端:
- 资产库 library.tsx 加三类 tab(模特上身图/平台套图/自由创作)+ 计数 + 筛选维度
- ai-tools 模特选择器数据源 person→模特库(listModels 映射,选中传形象图当参考 = 引用模特库),ActorLibrary 同源
- api.ts submitGenerateImage 加 model_entity_id

验收:tsc+build 全绿;无头 0 console error(资产库三类 tab 各归类正确、模特选择器 5 张取自模特库)
基线既有 3 失败(StandaloneImageReferenceTests 异步漂移)零新增

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

core/frontend/src/routes/library.tsx

@@ -34,10 +34,12 @@ const UPLOAD_KINDS: Array<{ value: string; label: string; accept: string; hint:
   { value: "subtitle", label: "字幕", accept: ".srt,.vtt,.ass", hint: "SRT / VTT / ASS" }
 ];
 
-type LibTab = "people" | "scenes" | "products" | "finals" | "uploads" | "unclassified";
+// 图片趴三类(期2):tryon=模特上身图 / kits=平台套图 / creations=自由创作
+type LibTab = "people" | "scenes" | "products" | "tryon" | "kits" | "creations" | "finals" | "uploads" | "unclassified";
 
 const LIB_TABS: Array<{ key: LibTab; label: string }> = [
   { key: "people", label: "人物" }, { key: "scenes", label: "场景" }, { key: "products", label: "商品图" },
+  { key: "tryon", label: "模特上身图" }, { key: "kits", label: "平台套图" }, { key: "creations", label: "自由创作" },
   { key: "finals", label: "成片" }, { key: "uploads", label: "我的上传" }, { key: "unclassified", label: "未分类" }
 ];
 
@@ -47,11 +49,11 @@ const LIB_CHIPS: Array<{ key: string; label: string; tabs: LibTab[] }> = [
   { key: "age", label: "年龄段", tabs: ["people"] },
   { key: "role", label: "角色标签", tabs: ["people"] },
   { key: "sceneType", label: "场景类型", tabs: ["scenes"] },
-  { key: "product", label: "关联商品", tabs: ["products"] },
+  { key: "product", label: "关联商品", tabs: ["products", "tryon", "kits"] },
   { key: "project", label: "关联项目", tabs: ["finals"] },
   { key: "duration", label: "时长", tabs: ["finals"] },
   { key: "kind", label: "资产类型", tabs: ["uploads"] },
-  { key: "source", label: "来源", tabs: ["people", "scenes", "products", "uploads"] }
+  { key: "source", label: "来源", tabs: ["people", "scenes", "products", "tryon", "kits", "creations", "uploads"] }
 ];
 
 // metadata 里可能用的中文属性键(真实存在才渲染,缺则不显;属性区不造假)
@@ -425,7 +427,7 @@ export function LibraryPage({ onUpload, onDelete }: { onUpload: (formData: FormD
   // ── 服务端懒加载:列表按页拉、tab 计数走 summary、筛选项走 facets(不再前端取全量再切片)──
   const [items, setItems] = useState<Asset[]>([]);
   const [total, setTotal] = useState(0);
-  const [counts, setCounts] = useState<Record<LibTab, number>>({ people: 0, scenes: 0, products: 0, finals: 0, uploads: 0, unclassified: 0 });
+  const [counts, setCounts] = useState<Record<LibTab, number>>({ people: 0, scenes: 0, products: 0, tryon: 0, kits: 0, creations: 0, finals: 0, uploads: 0, unclassified: 0 });
   const [facets, setFacets] = useState<{ sources: string[]; kinds: string[]; metadata: Record<string, string[]> }>({ sources: [], kinds: [], metadata: {} });
   const [loading, setLoading] = useState(false);
   const [page, setPage] = useState(1);