Yet another data construction solution in BFF layer: pydantic-resolve

1. use declaretive way to define schema of view data like graphql, easy to maintain and develop

2. use main query and loader query to break down complex queries, and better reuse

3. provide various of tools to precisely construct view data, no overhead

4. changing view data has never been so easy

5. with OpenAPI and typescript, developers can use the type definitions at client side