#3633 [Core feature] Improve error message on promises Issue created by cosmicBboy ### Motivation: Why do you think this is important? The purpose of this issue is to teach new users about how Promises work via better error messages. For example, if a user tries to do

promise.get()

or something like that, we should let them know what the legal operations are of promises (e.g. passing to other tasks/workflows, conditionals, etc.) ### Goal: What should the final outcome look like, ideally? TBD ### Describe alternatives you've considered NA ### Propose: Link/Inline OR Additional context No response ### Are you sure this issue hasn't been raised already? • Yes ### Have you read the Code of Conduct? • Yes flyteorg/flyte