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/index.ts

@@ -0,0 +1,8 @@
+import type { AvailablePlugins } from '../fundamentals/config';
+import { PaymentModule } from './payment';
+import { RedisModule } from './redis';
+
+export const pluginsMap = new Map<AvailablePlugins, AFFiNEModule>([
+  ['payment', PaymentModule],
+  ['redis', RedisModule],
+]);