fix: synchronize runtime locales and harden online updates

Translate UI, scheduler, validation, preload and maintenance messages dynamically, and propagate locale changes between workers. Harden update checks, downloads and terminal states, verify Debian pnpm, and ignore generated test artifacts.

back/shared/cronScheduler.ts

@@ -1,3 +1,4 @@
+import { t } from './i18n';
 import { createTask, ScheduledTask } from 'node-cron';
 import { parseCronSchedule } from './cronSchedule';
 
@@ -36,7 +37,7 @@ export function createCronJob(
     if (cancelled || !started || !accepts(index, date)) return;
     if (missed) {
       options.logger.warn(
-        '[schedule][补执行迟到任务] 任务: %s, 计划时间: %s',
+        t('[schedule][补执行迟到任务] 任务: %s, 计划时间: %s'),
         options.name,
         date.toISOString(),
       );
@@ -45,7 +46,7 @@ export function createCronJob(
       await callback(date);
     } catch (error) {
       options.logger.error(
-        '[schedule][定时回调失败] 任务: %s, 错误: %s',
+        t('[schedule][定时回调失败] 任务: %s, 错误: %s'),
         options.name,
         error instanceof Error ? error.message : String(error),
       );