[BUG] Custom MCP server is overwritten after login

# Issue

I start my `McpJam` app with `npx @mcpjam/inspector@latest --config mcp_servers.json --server ai-todo`

the config looks like the following:
`{"mcpServers":{"ai-todo":{"type":"streamable-http","url":"http://localhost:9991/mcp/"}}}`

then it opens a window which indeed connects to my server:

but later to use the chat I have to sign in, my server is not shown anymore and I have to manually add it:

# Expected Behavior

The connected server from my config will be autoconnected after the login and shown in the list of servers.

# Platform

- `npx`

Start by running `npx @mcpjam/inspector@latest --config mcp_servers.json --server ai-todo` with the shown `mcp_servers.json`, then follow the login flow. Trace how the configured server is retained when the authenticated view loads. Done means `ai-todo` remains listed and connected after sign-in without manual reconfiguration.

Written by the indexing model from the issue text.