修正i3-3代SKU总成本计算错误并清理验证图片

- 修正3个i3-3代SKU文件总成本与配件之和不一致的问题：i3-3代-4G-32G总成本221.5->236.5，i3-3代-4G-64G总成本236.5->251.5，i3-3代-8G-64G总成本313.5->298.5

- 删除售价验证临时图片，新增nascab产品和2.5金单有产品目录

产品/nascab/详情/add_text.py

@@ -0,0 +1,70 @@
+# -*- coding: utf-8 -*-
+"""在图片上叠加文字标签：标题 + 副标题，带半透明背景条"""
+from PIL import Image, ImageDraw, ImageFont
+import sys
+import os
+
+def add_text_overlay(image_path, title, subtitle, output_path):
+    img = Image.open(image_path).convert("RGBA")
+    w, h = img.size
+
+    # 创建文字图层
+    txt_layer = Image.new("RGBA", (w, h), (0, 0, 0, 0))
+    draw = ImageDraw.Draw(txt_layer)
+
+    # 字体大小根据图片宽度自适应
+    title_size = max(48, w // 18)
+    sub_size = max(28, w // 30)
+
+    # 尝试加载中文字体
+    font_paths = [
+        r"C:\Windows\Fonts\msyhbd.ttc",  # 微软雅黑粗体
+        r"C:\Windows\Fonts\msyh.ttc",     # 微软雅黑
+        r"C:\Windows\Fonts\simhei.ttf",   # 黑体
+    ]
+    title_font = None
+    sub_font = None
+    for fp in font_paths:
+        if os.path.exists(fp):
+            title_font = ImageFont.truetype(fp, title_size)
+            sub_font = ImageFont.truetype(fp, sub_size)
+            break
+
+    if title_font is None:
+        title_font = ImageFont.load_default()
+        sub_font = ImageFont.load_default()
+
+    # 文字位置：左上角，带边距
+    margin_x = w // 15
+    margin_y = h // 10
+
+    # 绘制半透明背景条
+    title_bbox = draw.textbbox((margin_x, margin_y), title, font=title_font)
+    sub_bbox = draw.textbbox((margin_x, title_bbox[3] + 12), subtitle, font=sub_font)
+
+    bar_top = margin_y - 16
+    bar_bottom = sub_bbox[3] + 16
+    bar_right = max(title_bbox[2], sub_bbox[2]) + 30
+
+    draw.rectangle(
+        [(margin_x - 16, bar_top), (bar_right, bar_bottom)],
+        fill=(0, 0, 0, 140)
+    )
+
+    # 绘制标题（白色粗体）
+    draw.text((margin_x, margin_y), title, font=title_font, fill=(255, 255, 255, 255))
+
+    # 绘制副标题（浅白色）
+    draw.text((margin_x, title_bbox[3] + 12), subtitle, font=sub_font, fill=(220, 230, 255, 230))
+
+    # 合成
+    result = Image.alpha_composite(img, txt_layer).convert("RGB")
+    result.save(output_path, "PNG")
+    print(f"Saved: {output_path}")
+
+
+if __name__ == "__main__":
+    if len(sys.argv) < 5:
+        print("Usage: python add_text.py <image_path> <title> <subtitle> <output_path>")
+        sys.exit(1)
+    add_text_overlay(sys.argv[1], sys.argv[2], sys.argv[3], sys.argv[4])