- Created httpTransport.ts with singleton MCP server and WebStandard
Streamable HTTP transport running inside Next.js process
- Added /api/mcp/sse route (GET+POST) for SSE transport
- Added /api/mcp/stream route (GET+POST+DELETE) for Streamable HTTP
- Added mcpTransport enum to settingsSchemas (stdio|sse|streamable-http)
- Updated /api/mcp/status to report HTTP transport state
- Added TransportSelector UI with mode buttons and connection URL display
- Routes guard against disabled MCP or wrong transport mode