Generate enum method results

[joetannenbaum]

If an enum has methods like label() or description(), Wayfinder now calls them for each case at generation time and writes the results to a companion constant.

export const OrderStatus = { Pending, Shipped, Delivered } as const

export const OrderStatusMeta = {
    pending: { label: "Awaiting Payment", color: "gray", isFinal: false },
    shipped: { label: "On Its Way", color: "gray", isFinal: false },
    delivered: { label: "Delivered", color: "green", isFinal: true },
} as const

It's keyed by case value rather than case name, so a value coming back from the server works as the lookup key: OrderStatusMeta[post.status].label.

Only methods with no required arguments get called. Static, magic, protected and private methods are skipped, along with anything returning void or never. Strings, numbers, booleans, null, arrays, backed enums, JsonSerializable, Arrayable and Stringable all convert; anything else is dropped. If a method throws for a single case, only that case loses the entry.

Nothing existing changes shape. The case constants, the enum object and the App.Enums.* union types are untouched, and no companion constant is emitted for an enum with no eligible methods.

Since this runs your code at generation time it's off by default, behind WAYFINDER_GENERATE_ENUM_METHODS. Worth knowing that a label() returning __('post.draft') bakes in whichever locale the command ran under.