dify - 💡(How to fix) Fix Header logo is exposed as a page heading and duplicate accessible name [1 pull requests]

Problem

The authenticated app header currently exposes the product logo as page-level document structure instead of treating it as navigation branding. This makes logged-in product routes present a brand/logo element as the page heading even though those routes are not public SEO landing pages.

The same logo area can also produce duplicated accessible text because the brand text and the logo image alternative text are both exposed to assistive technology. In accessibility tooling this can appear as repeated wording such as “Dify Dify logo”.

Impact

• Logged-in app pages get noisy heading semantics unrelated to the current page content.
• Assistive technology users can encounter redundant logo wording in the navigation area.
• The SEO value is unclear because this markup is in the authenticated product shell, not a public content surface.
• Logo accessibility behavior is inconsistent across auth, account, and app shell surfaces.

<img width="1276" height="112" alt="Image" src="https://github.com/user-attachments/assets/b89f2554-c15e-4524-9176-cd478cf97f4d" />