feat(auto-thumbnail): [PKG-AUTO-THUMB-08] add compatible runtime type entry

refactor/fixtures/implementation/auto-thumbnail.ts

@@ -1,6 +1,8 @@
 import type Artplayer from 'artplayer'
+import type { Factory, Result } from '../../../packages/artplayer-plugin-auto-thumbnail/types/runtime-api'
 import factory from '../../../packages/artplayer-plugin-auto-thumbnail/src'
 
 declare const art: Artplayer
-const registration: Promise<{ name: string }> = factory({ width: 80, number: 5 })(art)
-export { registration }
+const registration: Promise<Result> = factory({ width: 80, number: 5 })(art)
+const publicFactory: Factory = factory
+export { publicFactory, registration }