feat: schema type utils

[runspired]

A small improvement to schema types and some new type utilities to help folks author schemas effectively

import { isResourceSchema, resourceSchema, objectSchema } from '@warp-drive/core-types/schema/fields';

const UserSchema = resourceSchema({ /* typechecked+autocompleted schema */ });
const MyObjectSchema = objectSchema({ /* typechecked+autocompleted object schema */ });

isResourceSchema(UserSchema); // true + narrows to ResourceSchema
isResourceSchema(MyObjectSchema); // false + narrows to ObjectSchema

note: consumers can also use satisfies to achieve this in an elegant way, but where satisfies requires typing the close of the object and then returning to fill the object out, the utils allow setting up the typing from the head of the object. Both are great, you what you like. Here's an example with satisfies that does the same thing as resourceSchema:

import type { ResourceSchema } from '@warp-drive/core-types/schema/fields';

// the below will error as it is missing required properties
// it will also deeply type-check field defs
const User = { type: 'user' } satisfies ResourceSchema;

// and the equivalent which will also error and deep-check
import { resourceSchema } from '@warp-drive/core-types/schema/fields';

const User = resourceSchema({ type: 'user' });