模板导出增强 + 模特性别分组 + 三合一提示词精简

1) 模板导出：识别「基码表-胸围」填 sku.bust（多个胸围列都填）；申报价格模糊匹配多列统一按加价后价格填写；详情图文不再拼接 img_url_2；SPU 款式来源统一填「现货款」；商品产地国家简称映射（沙特→沙特阿拉伯）
2) 模特性别分组：model_features 按男女分组，按模板类目含男/女固定取对应性别模特（含 Pinterest 模式 pipeline）
3) 三合一提示词：去掉 DESIGN CONTENT 四要素描述（设计已由设计稿提供）
4) 生图尺寸：全部改为读 config 不再硬编码（设计图 compose.design_size / 合成图 compose.size / 种草图 seed_shot.size）

configs/pinterest/US.yaml

@@ -42,3 +42,42 @@ seeds:
   - baseball retro
   - basketball street
   - hiking adventure
+  - bald eagle illustration
+  - route 66 road trip
+  - new york skyline
+  - golden gate bridge
+  - grand canyon sunset
+  - yellowstone wildlife
+  - rocky mountain peaks
+  - appalachian trail
+  - jazz age retro
+  - blues music retro
+  - rock and roll retro
+  - country music retro
+  - rodeo retro
+  - barn quilt patterns
+  - farmhouse retro
+  - american diner neon
+  - drive-in movie retro
+  - vintage soda pop
+  - american football retro
+  - skateboard deck art
+  - graffiti street art
+  - desert cactus
+  - retro roller skate
+  - american retro circus
+  - liberty bell retro
+  - space shuttle retro
+  - vintage pinball
+  - bowling retro
+  # —— 节日主题（适合印花，避开宗教人物/国旗/酒精/猪等敏感项）——
+  - 4th of july fireworks
+  - thanksgiving turkey
+  - autumn pumpkin harvest
+  - christmas snowman
+  - winter reindeer
+  - valentine hearts
+  - easter bunny
+  - halloween pumpkin
+  - new year fireworks
+  - st patrick shamrock