core: add hook: system/setting

packages/hydrooj/src/service/bus.ts

@@ -38,6 +38,8 @@ export interface EventMap {
     'database/connect': (db: Db) => void
     'database/config': () => void
 
+    'system/setting': (args: Record<string, any>) => VoidReturn
+
     'monitor/update': (type: 'server' | 'judger', $set: any) => VoidReturn
 
     'user/message': (uid: number, mdoc: Mdoc, udoc: User) => void

packages/hydrooj/src/service/server.ts

@@ -254,7 +254,7 @@ export class HandlerCommon {
 
     translate(str: string) {
         if (!str) return '';
-        return str.toString().translate(this.user.viewLang, this.session.viewLang);
+        return str.toString().translate(this.user.viewLang, this.session.viewLang, system.get('server.language'));
     }
 
     renderTitle(str: string) {