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/src/plugins/payment/index.ts

@@ -0,0 +1,28 @@
+import { ServerFeature } from '../../core/config';
+import { FeatureModule } from '../../core/features';
+import { OptionalModule } from '../../fundamentals';
+import { SubscriptionResolver, UserSubscriptionResolver } from './resolver';
+import { ScheduleManager } from './schedule';
+import { SubscriptionService } from './service';
+import { StripeProvider } from './stripe';
+import { StripeWebhook } from './webhook';
+
+@OptionalModule({
+  imports: [FeatureModule],
+  providers: [
+    ScheduleManager,
+    StripeProvider,
+    SubscriptionService,
+    SubscriptionResolver,
+    UserSubscriptionResolver,
+  ],
+  controllers: [StripeWebhook],
+  requires: [
+    'plugins.payment.stripe.keys.APIKey',
+    'plugins.payment.stripe.keys.webhookKey',
+  ],
+  contributesTo: ServerFeature.Payment,
+})
+export class PaymentModule {}
+
+export type { PaymentConfig } from './types';