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/CA.yaml

@@ -41,3 +41,42 @@ seeds:
   - canadian nature
   - canadian wildlife retro
   - canadian outdoor
+  - canadian beaver
+  - canadian goose
+  - canadian owl
+  - canadian eagle
+  - canadian black bear
+  - canadian wolf
+  - canadian fox
+  - canadian deer
+  - canadian elk
+  - canadian caribou
+  - canadian salmon
+  - canadian lobster
+  - canadian whale
+  - canadian puffin
+  - canadian heron
+  - canadian maple syrup
+  - canadian curling
+  - canadian skiing
+  - canadian ice skating
+  - canadian winter retro
+  - canadian waterfall
+  - canadian glacier
+  - canadian lighthouse
+  - canadian log cabin
+  - canadian barn
+  - canadian wheat
+  - canadian wildflower
+  - canadian pine
+  # —— 节日主题（适合印花，避开宗教人物/国旗/酒精/猪等敏感项）——
+  - canada day fireworks
+  - thanksgiving harvest
+  - maple sugar shack
+  - winter carnival
+  - easter eggs
+  - halloween pumpkin
+  - christmas snow
+  - new year fireworks
+  - autumn leaves
+  - spring blossom