Get OAuth URL

curl --request POST \
  --url https://api.klavis.ai/mcp-server/oauth-url \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "serverName": "Markdown2doc",
  "instanceId": "<string>",
  "clientId": "<string>",
  "scope": "<string>",
  "redirectUrl": "<string>"
}'

{
  "oauthUrl": "<string>"
}