refactor: move prop decorator into core, expose initial props to initialziers

packages/decorators/src/index.ts

@@ -1,22 +0,0 @@
-import { PropValidator, Component } from '@vue/runtime-core'
-
-export function prop(
-  target: Component | PropValidator<any>,
-  key?: string
-): any {
-  if (key) {
-    applyProp(target, key)
-  } else {
-    const options = target as PropValidator<any>
-    return (target: any, key: string) => {
-      applyProp(target, key, options)
-    }
-  }
-}
-
-function applyProp(target: any, key: string, options: PropValidator<any> = {}) {
-  // here `target` is the prototype of the component class
-  Object.defineProperty(target, `__prop_${key}`, {
-    value: options
-  })
-}