Some MCP sync providers removed

What changed

The MCP provider sync page no longer lists Lanyun, 302.AI, or MCP Router as server discovery providers. ModelScope and Alibaba Cloud Bailian remain available.

Why this matters to the user

Users can no longer browse or sync MCP servers from Lanyun, 302.AI, or MCP Router through the built-in MCP provider page. Existing MCP servers that were already added to the local server list are not removed by this UI change.

What the user should do

Use ModelScope, Alibaba Cloud Bailian, or manually add MCP server configuration JSON for servers from other sources.

Notes for release manager

• Removed providers from the MCP sync provider list: Lanyun, 302.AI, MCP Router.
• This does not remove unrelated model provider labels or OAuth handling for providers that still exist elsewhere in the app.