[beta] Refine RelationsFieldFilter type to prioritize Primitive over Object

[xuxucode]

Branded types may be both Primitive and Object. For example:

import z from 'zod'

// AppId is both string and object
export type AppId = string & z.$brand<'AppId'>

Currently RelationsFieldFilter<AppId> results in never. It leads to a type error when $type<AppId>() is used in the database schema. For example:

import { db } from '../lib/db'
import { pgTable, uuid } from 'drizzle-orm/pg-core'

export const apps = pgTable('apps', {
  id: uuid().$type<AppId>().primaryKey(),
})

export async function getAppById(appId: AppId) {
  return db.query.apps.findFirst({
    where: {
      id: appId,
    },
  })
}

Error:

Prioritizing Primitive over Object in the RelationsFieldFilter definition will fix that