fix: Z41 preserve product semantics during generation

Replace the silent generic-record fallback for product requests and expose semantic validation diagnostics before publishing.

Co-authored-by: Cursor <cursoragent@cursor.com>

ai-service/generation_rules.py

@@ -119,8 +119,7 @@ def wants_screenshot_layout(prompt: str, image_count: int, html_count: int = 0)
         return False
     if image_count > 0 or html_count > 0:
         return True
-    if any(k in p for k in _SCREENSHOT_OPT_IN):
-        return True
+    # 只有“还原截图”等文字但没有实际截图/HTML，不能启用截图专用 preset。
     return False