refactor(core): 基础资产改对逻辑+对齐设计稿(一组多版本候选 + 详情弹窗 asset-detail-grid)

逻辑(后端):用 BaseAssetGroup 本来的设计,不再每次生成新建组
- generate_base_asset 复用同实体的组(商品=唯一商品组;人物/场景按 label):追加 candidate + 采用最新
- 版本 = candidate_assets,采用/当前 = adopted_asset;采用/切换走真 adopt-base-asset(下游只认 adopted)
- 人物三视图绑定到「某一版立绘 asset」:metadata.triview_of=<立绘 asset id>,同立绘多次=同组追加候选
- generate-triview 端点改取 portrait_asset_id;attach-base-asset 坏参数 404 加固

设计(前端):
- 人物/场景卡对齐设计稿(.prompt-box 可编辑 + 重跑/替换 + 转圈态,区头 N 个 + 克制「+ 新增」)
- 详情弹窗整套换成设计稿 asset-detail-grid:左大立绘(3:4)+版本缩略条;右三视图 section(16:9 + 重跑/下载 + 单张大图 + 暂无 tip + v1/v2 版本条)+ 提示词 section;脚部 下载立绘 + 使用该资产;场景无三视图
- 商品三视图内联面板版本=candidate_assets、采用走真 adopt
- 修:.thumb/.v-thumb/.h-thumb 非 .placeholder 导致缩略图不显图 → 接 --mock-media-url

本地 playwright 截图实测:基础资产卡 + 详情弹窗均按设计稿渲染。

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

core/frontend/src/pipeline-page.css

@@ -268,6 +268,22 @@
   .prod-preview-img { aspect-ratio: 16/9; }
   .prod-preview-foot { display: flex; align-items: center; gap: 8px; min-height: 30px; }
   .prod-preview-history { display: none; flex-direction: column; gap: 6px; }
+  .prod-preview-history.show { display: flex; }
+  .prod-preview-history .h-lbl { font-family: var(--font-mono); font-size: 12px; color: var(--black-alpha-48); letter-spacing: .04em; text-transform: uppercase; }
+  .prod-preview-history .h-lbl .ct { color: var(--accent-black); font-weight: 600; }
+  .prod-preview-history .h-row { display: flex; gap: 6px; overflow-x: auto; padding: 2px; scrollbar-width: thin; }
+  .prod-preview-history .h-thumb { flex: 0 0 auto; width: 72px; aspect-ratio: 16/9; background: var(--background-lighter); border: 1px solid var(--border-faint); border-radius: var(--r-sm); position: relative; cursor: pointer; transition: border-color var(--t-base); display: grid; place-items: center; overflow: hidden; }
+  .prod-preview-history .h-thumb:hover { border-color: var(--heat-40); }
+  .prod-preview-history .h-thumb.adopted { border-color: var(--heat); border-width: 2px; box-shadow: 0 0 0 2px var(--heat-12); }
+  .prod-preview-history .h-thumb.previewing { border-color: var(--accent-black); border-width: 2px; }
+  .prod-preview-history .h-thumb .v { font-family: var(--font-mono); font-size: 10px; color: var(--black-alpha-56); letter-spacing: .02em; position: relative; z-index: 1; }
+  .prod-preview-history .h-thumb.adopted .v { color: var(--heat); font-weight: 600; }
+  .prod-preview-history .h-thumb.previewing .v { color: var(--accent-black); font-weight: 600; }
+  .prod-preview-history .h-thumb .badge { position: absolute; top: 2px; left: 2px; font-family: var(--font-mono); font-size: 9px; padding: 0 4px; line-height: 12px; background: var(--heat); color: var(--accent-white); border-radius: 2px; letter-spacing: .02em; display: none; z-index: 2; }
+  .prod-preview-history .h-thumb.adopted .badge { display: block; }
+  .prod-preview-img.is-zoomable { cursor: zoom-in; transition: border-color var(--t-base); }
+  .prod-preview-img.is-zoomable:hover { border-color: var(--heat-40); }
+  .prod-preview-adopt:disabled, .prod-preview-adopt:disabled:hover { color: var(--heat); border-color: var(--heat-40); background: var(--heat-12); cursor: not-allowed; opacity: 1; }
 
   .asset-card-2 { background: var(--surface); border: 1px solid var(--border-faint); border-radius: var(--r-md); cursor: pointer; transition: border-color var(--t-base), box-shadow var(--t-base); overflow: hidden; display: flex; flex-direction: column; }
   .asset-card-2:hover { border-color: var(--heat-40); box-shadow: 0 1px 3px rgba(0,0,0,.04); }
@@ -276,6 +292,12 @@
   .asset-card-2.asset-seed .thumb-2 { opacity: .7; }
   .asset-card-2 .thumb-2 { aspect-ratio: 1; }
   .asset-card-2 .body-2 { padding: 12px 14px; }
+  /* 对齐设计稿:人物/场景卡提示词框(mono 可编辑,非 textarea) */
+  .prompt-box { background: var(--background-base); border: 1px solid var(--border-faint); border-radius: var(--r-sm); padding: 10px 12px; font-size: 12px; color: var(--black-alpha-56); margin-top: 8px; line-height: 1.55; font-family: var(--font-mono); letter-spacing: .01em; transition: border-color var(--t-base), background var(--t-base); }
+  .prompt-box[contenteditable="true"] { cursor: text; outline: none; }
+  .prompt-box[contenteditable="true"]:hover { border-color: var(--heat-20); }
+  .prompt-box[contenteditable="true"]:focus { border-color: var(--heat); background: var(--surface); color: var(--accent-black); box-shadow: 0 0 0 3px var(--heat-12); }
+  .asset-card-2 .thumb-2 .spinner { width: 26px; height: 26px; border: 2.5px solid var(--heat-20); border-top-color: var(--heat); border-radius: 50%; animation: assetSpin .7s linear infinite; }
   .asset-card-2 .body-2 .btn:disabled, .asset-card-2 .body-2 .btn.disabled { background: transparent; border-color: transparent; color: var(--black-alpha-32); box-shadow: none; cursor: not-allowed; opacity: .72; transform: none; }
   .asset-card-2 .body-2 .btn:disabled:hover, .asset-card-2 .body-2 .btn.disabled:hover { background: transparent; border-color: transparent; color: var(--black-alpha-32); box-shadow: none; transform: none; }
 
@@ -572,6 +594,51 @@
   .tri-cand-card .tri-cand-img { aspect-ratio: 16/9; }
   .tri-cand-card .tri-cand-foot { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 8px 10px; }
   .tri-cand-card .tri-cand-foot .mono { font-family: var(--font-mono); font-size: 12px; color: var(--black-alpha-48); }
+  /* ── 流程步骤4 · 人物/场景详情弹窗(对齐设计稿 asset-detail-grid)── */
+  .asset-modal-h .ad-tag { font-family: var(--font-mono); font-size: 12px; color: var(--black-alpha-48); letter-spacing: .02em; }
+  .asset-detail-grid { display: grid; grid-template-columns: 320px 1fr; gap: 24px; }
+  .asset-detail-lead { display: flex; flex-direction: column; gap: 10px; }
+  .asset-detail-lead .ad-lead-wrap { position: relative; }
+  .asset-detail-lead .placeholder.ad-lead-img { aspect-ratio: 3/4; border-radius: var(--r-md); }
+  .ad-zoom-btn { position: absolute; right: 8px; bottom: 8px; width: 32px; height: 32px; padding: 0; background: rgba(21,20,15,.7); color: #fff; border: 0; border-radius: var(--r-sm); display: grid; place-items: center; cursor: pointer; opacity: 0; transition: opacity var(--t-base), background var(--t-base); z-index: 3; }
+  .ad-zoom-btn:hover { background: rgba(21,20,15,.92); }
+  .ad-zoom-btn svg { width: 14px; height: 14px; }
+  .asset-detail-lead .ad-lead-wrap:hover .ad-zoom-btn, .asset-detail-tri-row .ad-tri-wrap:hover .ad-zoom-btn { opacity: 1; }
+  .asset-detail-tri-row .ad-tri-wrap { position: relative; }
+  .asset-detail-lead .ad-thumbs { display: flex; gap: 8px; flex-wrap: wrap; }
+  .asset-detail-lead .ad-thumbs .thumb { flex: 0 0 56px; width: 56px; aspect-ratio: 3/4; border-radius: var(--r-sm); border: 1px solid var(--border-faint); cursor: pointer; overflow: hidden; transition: border-color var(--t-base); }
+  .asset-detail-lead .ad-thumbs .thumb:hover { border-color: var(--heat-40); }
+  .asset-detail-lead .ad-thumbs .thumb.active { border-color: var(--heat); border-width: 2px; }
+  .asset-detail-right .ad-section + .ad-section { margin-top: 18px; }
+  .asset-detail-section-h { display: flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; color: var(--accent-black); margin-bottom: 10px; }
+  .asset-detail-section-h .ic { width: 14px; height: 14px; color: var(--heat); flex-shrink: 0; display: grid; place-items: center; }
+  .asset-detail-section-h .ic svg { width: 14px; height: 14px; }
+  .asset-detail-section-h .ad-ratio-chip { margin-left: auto; font-family: var(--font-mono); font-size: 12px; padding: 2px 8px; border-radius: var(--r-sm); background: var(--background-lighter); border: 1px solid var(--border-faint); color: var(--black-alpha-56); letter-spacing: .02em; }
+  .asset-detail-section-h .ad-icon-btn { width: 28px; height: 28px; display: grid; place-items: center; background: var(--surface); border: 1px solid var(--border-faint); border-radius: var(--r-sm); color: var(--black-alpha-56); cursor: pointer; transition: background var(--t-base), color var(--t-base), border-color var(--t-base); }
+  .asset-detail-section-h .ad-icon-btn:hover { color: var(--heat); border-color: var(--heat-40); }
+  .asset-detail-section-h .ad-icon-btn svg { width: 12px; height: 12px; }
+  .asset-detail-section-h .ad-icon-gap { margin-left: 8px; }
+  .asset-detail-tri-row .placeholder { aspect-ratio: 16 / 9; border-radius: var(--r-md); }
+  .asset-detail-tri-row .placeholder.missing { display: grid; place-items: center; border: 1px dashed var(--border-faint); background: var(--background-lighter); color: var(--black-alpha-48); font-family: var(--font-mono); font-size: 12px; padding: 12px; text-align: center; gap: 8px; }
+  .md-view-versions { display: flex; gap: 6px; overflow-x: auto; padding: 2px; margin-top: 8px; }
+  .md-view-versions .v-thumb { flex: 0 0 auto; width: 72px; aspect-ratio: 16/9; background: var(--background-lighter); border: 1px solid var(--border-faint); border-radius: var(--r-sm); position: relative; cursor: pointer; display: grid; place-items: center; overflow: hidden; transition: border-color var(--t-base); }
+  .md-view-versions .v-thumb:hover { border-color: var(--heat-40); }
+  .md-view-versions .v-thumb.active { border-color: var(--heat); border-width: 2px; box-shadow: 0 0 0 2px var(--heat-12); }
+  .md-view-versions .v-thumb .v { font-family: var(--font-mono); font-size: 10px; color: var(--black-alpha-56); letter-spacing: .02em; }
+  .md-view-versions .v-thumb.active .v { color: var(--heat); font-weight: 600; }
+  .asset-detail-tip { margin-top: 10px; padding: 10px 12px; background: var(--heat-12); border: 1px solid var(--heat-20); border-radius: var(--r-sm); font-size: 12px; color: var(--accent-black); display: flex; align-items: center; gap: 8px; line-height: 1.5; }
+  .asset-detail-tip svg { width: 14px; height: 14px; color: var(--heat); flex-shrink: 0; }
+  .asset-detail-tip .ai-gen-btn { margin-left: auto; height: 26px; padding: 0 10px; background: var(--heat); color: var(--accent-white); border: 1px solid var(--heat); border-radius: var(--r-sm); font-size: 12px; cursor: pointer; font-family: inherit; flex-shrink: 0; }
+  .asset-modal-f .ad-foot-stats { display: flex; gap: 6px; margin-right: auto; }
+  .asset-modal-f .ad-stat-btn { height: 32px; padding: 0 12px; display: inline-flex; align-items: center; gap: 6px; background: transparent; border: 1px solid var(--border-faint); border-radius: var(--r-sm); color: var(--black-alpha-72); font-size: 12px; font-family: inherit; cursor: pointer; transition: background var(--t-base), color var(--t-base), border-color var(--t-base); }
+  .asset-modal-f .ad-stat-btn:hover { background: var(--background-lighter); color: var(--accent-black); }
+  .asset-modal-f .ad-stat-btn svg { width: 13px; height: 13px; }
+  .ad-detail-prompt { width: 100%; font-family: var(--font-mono); font-size: 12px; line-height: 1.6; color: var(--black-alpha-72); background: var(--background-base); border: 1px solid var(--border-faint); border-radius: var(--r-sm); padding: 10px 12px; outline: none; resize: vertical; min-height: 64px; transition: border-color var(--t-base), background var(--t-base), box-shadow var(--t-base); }
+  /* 版本缩略图(非 .placeholder,需自己接 --mock-media-url 才显图) */
+  .ad-thumbs .thumb.has-mock-media, .md-view-versions .v-thumb.has-mock-media, .prod-preview-history .h-thumb.has-mock-media { background-image: var(--mock-media-url); background-size: cover; background-position: center; background-repeat: no-repeat; }
+  .ad-detail-prompt:hover { border-color: var(--heat-20); }
+  .ad-detail-prompt:focus { border-color: var(--heat); background: var(--surface); color: var(--accent-black); box-shadow: 0 0 0 3px var(--heat-12); }
+
   .tri-empty { text-align: center; padding: 8px 0; }
   .tri-empty .tri-empty-hint { font-size: 13px; line-height: 1.6; color: var(--black-alpha-56); margin-top: 14px; }