List Available Providers

[  {    "baseUrl": null,    "defaultModel": null,    "displayName": null,    "id": "string",    "isConfigured": true,    "isEnabled": true,    "provider": "string",    "supportsWebSearch": true  }]

{  "cause": {    "code": "api/invalid-json",    "detail": "string"  },  "message": "The request body is not valid JSON"}

{  "cause": {    "code": "auth/jwt-invalid",    "detail": "malformed"  },  "message": "Token verification failed"}

{  "cause": {    "code": "api/no-active-team",    "detail": "You must have an active team. Please select a team to continue."  },  "message": "No active team"}

{  "cause": {    "code": "api/unsupported-media-type",    "detail": "GET requests cannot have a content type header"  },  "message": "Unsupported Media Type"}