Input fields lose their jsdoc comments

[paul-sachs]

Reproduction steps:

1. Use any given service method whose input fields contain some jsdoc comments
2. Write out a query like useQuery(serviceMethod, { someField: "whatever" })

Notice that hovering over someField doesn't show the jsdoc associated with the field.

I believe this may be due to our mapped type MessageInitShape transforming the keys and losing the jsdoc info (see TS issue) but not sure.