Define simple models for job messages.

[jmchilton]

Implements #19676 - first step toward proper typing on the frontend and solving one more vue-tsc error.

A note about a refactoring and dependencies

I moved the Job schema definition into the API package so it can depend on galaxy-tool-util. For now - us defining models in both galaxy-schema and galaxy-tool-util will mean combined models need to be placed in a package that depends on them both. I think longer term we will need to separate all the galaxy-tool-util models out into their own package and have galaxy-schema depend on that. Maybe I'm wrong though and the right approach is just to place all the models into galaxy-schema and update galaxy-tool-util to depend on that - I just really want galaxy-tool-util to have minimal dependencies and it seems like there is so much unrelated to artifact parsing and execution in galaxy-schema.

How to test the changes?

(Select all options that apply)

• This is a refactoring of components with existing test coverage.

License

• I agree to license these and all my past contributions to the core galaxy codebase under the MIT license.