refactor(server): plugin modules (#5630)

- [x] separates modules into `fundamental`, `core`, `plugins`
- [x] optional modules with `@OptionalModule` decorator to install modules with requirements met(`requires`, `if`)
- [x] `module.contributesTo` defines optional features that will be enabled if module registered
- [x] `AFFiNE.plugins.use('payment', {})` to enable a optional/plugin module
- [x] `PaymentModule` is the first plugin module
- [x] GraphQLSchema will not be generated for non-included modules
- [x] Frontend can use `ServerConfigType` query to detect which features are enabled
- [x] override existing provider globally

packages/backend/server/tests/utils/workspace.ts

@@ -1,7 +1,7 @@
 import type { INestApplication } from '@nestjs/common';
 import request from 'supertest';
 
-import type { WorkspaceType } from '../../src/modules/workspaces';
+import type { WorkspaceType } from '../../src/core/workspaces';
 import { gql } from './common';
 
 export async function createWorkspace(