Action result object

Here's how action result object is structured (all keys are optional):

Name	When	Value
data?	Execution is successful.	What you returned in action's server code.
validationErrors?	Input data doesn't pass validation.	An object whose keys are the names of the fields that failed validation. Each key's value is either an ErrorList or a nested key with an ErrorList inside. ErrorList is defined as: { errors?: string[] }. It follows the same structure as Zod's format function.
serverError?	An error occurs during action's server code execution.	A generic type that by default is the string "Something went wrong while executing the operation." for every server error that occurs, but this is configurable when instantiating a new client.