fix: Добавил главный файл с экспортами, поправил пэкадж и названия файла хранилища монги

src/index.ts

@@ -0,0 +1,8 @@
+import { EntityConstructor, ErrEntityHasNoUniqKeyValue } from './app/entity'
+import { ErrEntityNotFound, ErrFoundNotUniqEntity } from './app/repo'
+import { ErrNoSession, ErrStorage, StorageCursor, StorageSession } from './app/storage'
+
+export { Data } from './app/data'
+export { Entity, EntityConstructor, ErrEntityHasNoUniqKeyValue } from './app/entity'
+export { Repo, ErrFoundNotUniqEntity, ErrEntityNotFound } from './app/repo'
+export { Storage, StorageCursor, ErrStorage, ErrNoSession, StorageSession } from './app/storage'