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/quota.spec.ts

@@ -3,15 +3,15 @@
 import { TestingModule } from '@nestjs/testing';
 import ava, { type TestFn } from 'ava';
 
-import { AuthService } from '../src/modules/auth';
+import { AuthService } from '../src/core/auth';
 import {
   QuotaManagementService,
   QuotaModule,
   Quotas,
   QuotaService,
   QuotaType,
-} from '../src/modules/quota';
-import { StorageModule } from '../src/modules/storage';
+} from '../src/core/quota';
+import { StorageModule } from '../src/core/storage';
 import { createTestingModule } from './utils';
 
 const test = ava as TestFn<{