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/services/system.ts

@@ -5,7 +5,7 @@ import { promisify } from 'util';
 import { shellQuote } from '../shared/shellQuote';
 import { Response } from 'express';
 import fs from 'fs';
-import { Agent, request } from 'undici';
+import { request } from 'undici';
 import path from 'path';
 import { Inject, Service } from 'typedi';
 import winston from 'winston';
@@ -282,26 +282,24 @@ export default class SystemService {
   }
 
   public async checkUpdate() {
+    const controller = new AbortController();
+    const timeout = setTimeout(() => controller.abort(), 15000);
     try {
       const currentVersionContent = await parseVersion(config.versionFile);
 
-      let lastVersionContent;
-      try {
-        const { body } = await request(
-          `${config.lastVersionFile}?t=${Date.now()}`,
-          {
-            dispatcher: new Agent({
-              keepAliveTimeout: 30000,
-              keepAliveMaxTimeout: 30000,
-            }),
-          },
-        );
-        const text = await body.text();
-        lastVersionContent = parseContentVersion(text);
-      } catch (error) {}
-
-      if (!lastVersionContent) {
-        lastVersionContent = currentVersionContent;
+      const { body, statusCode } = await request(
+        `${config.lastVersionFile}?t=${Date.now()}`,
+        { signal: controller.signal },
+      );
+      const text = await body.text();
+      if (statusCode !== 200) throw new Error('Version request failed');
+      const lastVersionContent = parseContentVersion(text);
+      if (
+        !lastVersionContent ||
+        typeof lastVersionContent.version !== 'string' ||
+        !/^\d+\.\d+\.\d+$/.test(lastVersionContent.version)
+      ) {
+        throw new Error('Invalid version response');
       }
 
       return {
@@ -319,8 +317,10 @@ export default class SystemService {
     } catch (error: any) {
       return {
         code: 400,
-        message: error.message,
+        message: t('检查更新失败，请检查网络后重试'),
       };
+    } finally {
+      clearTimeout(timeout);
     }
   }