fix: resolve CI failures — add highlight.js dep, remove electron import from provisioning

- Add highlight.js as direct dependency (was transitive via rehype-highlight, missing type declarations in CI)
- Replace `app.getLocale()` with `Intl.DateTimeFormat().resolvedOptions().locale` to avoid importing electron in TeamProvisioningService (broke tests that don't mock electron)

package.json

@@ -80,6 +80,7 @@
     "date-fns": "^3.6.0",
     "electron-updater": "^6.7.3",
     "fastify": "^5.7.4",
+    "highlight.js": "^11.11.1",
     "idb-keyval": "^6.2.2",
     "lucide-react": "^0.562.0",
     "mdast-util-to-hast": "^13.2.1",

pnpm-lock.yaml

@@ -71,6 +71,9 @@ importers:
       fastify:
         specifier: ^5.7.4
         version: 5.7.4
+      highlight.js:
+        specifier: ^11.11.1
+        version: 11.11.1
       idb-keyval:
         specifier: ^6.2.2
         version: 6.2.2

src/main/services/team/TeamProvisioningService.ts

@@ -13,7 +13,6 @@ import { resolveLanguageName } from '@shared/utils/agentLanguage';
 import { createLogger } from '@shared/utils/logger';
 import { execFile, spawn } from 'child_process';
 import { randomUUID } from 'crypto';
-import { app } from 'electron';
 import * as fs from 'fs';
 import * as os from 'os';
 import * as path from 'path';
@@ -288,10 +287,18 @@ function buildTaskStatusProtocol(teamName: string): string {
 Failure to follow this protocol means the task board will show incorrect status.`;
 }
 
+function getSystemLocale(): string {
+  try {
+    return Intl.DateTimeFormat().resolvedOptions().locale;
+  } catch {
+    return process.env.LANG?.split('.')[0]?.replace('_', '-') ?? 'en';
+  }
+}
+
 function getAgentLanguageInstruction(): string {
   const config = ConfigManager.getInstance().getConfig();
   const langCode = config.general.agentLanguage || 'system';
-  const systemLocale = app.getLocale();
+  const systemLocale = getSystemLocale();
   const languageName = resolveLanguageName(langCode, systemLocale);
   return `IMPORTANT: Communicate in ${languageName}. All messages, summaries, and task descriptions MUST be in ${languageName}.`;
 }