add validation when create/update App

[nquang29]

#2011

[nquang29]

@beastoin pls help me to review

[beastoin]

1/ learn about the pydantic model then apply it.

@nquang29

[nquang29]

1/ attempted to apply pydantic. pls help me to review again @beastoin

[beastoin]

1/ ok
2/ one more step, only accept specific fields on updating the app, for example we should not approve update the admin-fields such as approved, status, remember the form models in Gin ?

@nquang29

[nquang29]

2/ i defined list restricted fields to prevent user from update this @beastoin

[beastoin]

2/ use whitelist instead of blacklist. we should have the allowed fields for creation as well.

@nquang29 last commit please 😌

[nquang29]

2/ done sir @beastoin . but i think we should separate model to AppUpdate, AppCreate for api create/update

[beastoin]

2/ separating the model, do it pls @nquang29

[nquang29]

2/ done sir @beastoin

[beastoin]

lgtm @nquang29 🌚

Next, let's make the model a bit more generic and share your test with our app (in dev env).