feat(server): runtime setting support (#5602)

---

<details open="true"><summary>Generated summary (powered by <a href="https://app.graphite.dev">Graphite</a>)</summary>

> ## TL;DR
> This pull request adds a new migration file, a new model, and new modules related to runtime settings. It also introduces a new `Runtime` service that allows getting, setting, and updating runtime configurations.
>
> ## What changed
> - Added a new migration file `migration.sql` that creates a table called `application_settings` with columns `key` and `value`.
> - Added a new model `ApplicationSetting` with properties `key` and `value`.
> - Added a new module `RuntimeSettingModule` that exports the `Runtime` service.
> - Added a new service `Runtime` that provides methods for getting, setting, and updating runtime configurations.
> - Modified the `app.module.ts` file to import the `RuntimeSettingModule`.
> - Modified the `index.ts` file in the `fundamentals` directory to export the `Runtime` service.
> - Added a new file `def.ts` in the `runtime` directory that defines the runtime configurations and provides a default implementation.
> - Added a new file `service.ts` in the `runtime` directory that implements the `Runtime` service.
>
> ## How to test
> 1. Run the migration script to create the `application_settings` table.
> 2. Use the `Runtime` service to get, set, and update runtime configurations.
> 3. Verify that the runtime configurations are stored correctly in the database and can be retrieved and modified using the `Runtime` service.
>
> ## Why make this change
> This change introduces a new feature related to runtime settings. The `Runtime` service allows the application to dynamically manage and modify runtime configurations without requiring a restart. This provides flexibility and allows for easier customization and configuration of the application.
</details>

packages/backend/server/src/plugins/redis/config.ts

@@ -0,0 +1,11 @@
+import { RedisOptions } from 'ioredis';
+
+import { defineStartupConfig, ModuleConfig } from '../../fundamentals/config';
+
+declare module '../config' {
+  interface PluginsConfig {
+    redis: ModuleConfig<RedisOptions>;
+  }
+}
+
+defineStartupConfig('plugins.redis', {});

packages/backend/server/src/plugins/redis/index.ts

@@ -1,5 +1,6 @@
+import './config';
+
 import { Global, Provider, Type } from '@nestjs/common';
-import type { RedisOptions } from 'ioredis';
 import { Redis } from 'ioredis';
 import { ThrottlerStorageRedisService } from 'nestjs-throttler-storage-redis';
 
@@ -64,5 +65,3 @@ const mutexRedisAdapterProvider: Provider = {
   requires: ['plugins.redis.host'],
 })
 export class RedisModule {}
-
-export { RedisOptions };

packages/backend/server/src/plugins/redis/instances.ts

@@ -30,20 +30,20 @@ class Redis extends IORedis implements OnModuleDestroy, OnModuleInit {
 @Injectable()
 export class CacheRedis extends Redis {
   constructor(config: Config) {
-    super(config.plugins.redis ?? {});
+    super(config.plugins.redis);
   }
 }
 
 @Injectable()
 export class SessionRedis extends Redis {
   constructor(config: Config) {
-    super({ ...config.plugins.redis, db: (config.plugins.redis?.db ?? 0) + 2 });
+    super({ ...config.plugins.redis, db: (config.plugins.redis.db ?? 0) + 2 });
   }
 }
 
 @Injectable()
 export class SocketIoRedis extends Redis {
   constructor(config: Config) {
-    super({ ...config.plugins.redis, db: (config.plugins.redis?.db ?? 0) + 3 });
+    super({ ...config.plugins.redis, db: (config.plugins.redis.db ?? 0) + 3 });
   }
 }

packages/backend/server/src/plugins/redis/types.ts

@@ -1,3 +0,0 @@
-import { RedisOptions } from 'ioredis';
-
-export type { RedisOptions };