Summary: 美图设计室 adds AI design agent and hot tools list

Why It Matters: This shows a focus on new AI features and making popular tools easy to find.

What Changed:

• Added a "Hot Search Tools" section with "AI design agent," "AI model," "AI product image," "Smart cutout," and "LivePPT."
• Added a "Hot Search Templates" section with a list of 10 popular templates.
• Added a new membership offer for "0.9 yuan" with details on advanced features, content, commercial rights, and multi-device access.
• Added a new section promoting "AI design agent" with the text "AI design agent is online! Enter a sentence and let AI help you draw, come and try it!"
• Removed "AI花字" from the AI design tools list.
• Changed the order of some template categories in the "Design Square" section.