Add the Exa MCP server to my opencode config so I can search the web live.
Add it to the "mcp" section in opencode.json:
exa: {
"type": "remote",
"url": "https://mcp.exa.ai/mcp?tools=web_search_exa,web_fetch_exa,web_search_advanced_exa",
"enabled": true
}
Keep anything else in the file untouched. Tell me when it's ready.