feat: add consumer types for Model APIs

[runspired]

adds types for

• decorators
  • attr
    • transforms

    class {
      @attr declare name string;
      
      // enforces transform name is a string, and defaultValue is a primitive or function
      // and no other keys allowed on the options hash
      @attr('string', { defaultValue: 'hello world' }) declare name string;
      
      // enforces that defaultValue is a primitive or function and no other keys allowed
      // on the options hash
      @attr({ defaultValue: 'hello world' }) declare name string;
      
      // enforces that the transform name matches the brand symbol on StringTransform
      // enforces that defaultValue is a primitive value or function whose type matches
      // the transform's output
      // enforces that only options allowed by the transform are able to be passed into
      // the options object
      @attr<StringTransform>('string', { defaultValue: 'hello world' }) declare name string;
    }

  • belongsTo
  • hasMany
• Model APIs
  • record.belongsTo()
  • record.hasMany()

adds type utils for

• async hasMany
• async belongsTo