fix(app): render LanguagePreferenceSync at the top of the provider tree

[sonegillis1]

Summary

Move <LanguagePreferenceSync /> out of the AuthProvider subtree and render it at the top of the provider tree, alongside SentryInit / MentorTimeTrackingProvider.

Previously it only mounted when the AuthProvider → TenantProvider subtree rendered (which is gated/skipped on SSO-login, version, and Tauri-offline routes). Hoisting it makes language-preference syncing mount regardless of that gating.

Change

   <SentryInit />
+  <LanguagePreferenceSync />
   <MentorTimeTrackingProvider intervalSeconds={30} enabled={true} />
   ...
-      <LanguagePreferenceSync />
       <TenantProvider ...>

One-line move; no behavior change beyond mount timing/placement.

[mamigot]

Claude finished @sonegillis1's task —— View job

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E2E Coverage Review

• Dismiss stale REQUEST_CHANGES reviews (none found)
• Identify changed files (providers/index.tsx only — no new page.tsx routes)
• Run mechanical coverage check (499 checkpoints, exit code 0)
• Apply decision logic and post review (Case E: approved)

Result: No new app routes were introduced. All existing coverage is intact. PR approved. ✅

[mamigot]

✅ E2E Coverage — No Issues

No new app routes were introduced. All existing coverage is intact.

[mamigot]

Claude finished @sonegillis1's task —— View job

---

E2E Coverage Review

• Dismiss stale REQUEST_CHANGES reviews (none found)
• Identify changed files (providers/index.tsx only — no new page.tsx routes)
• Run mechanical coverage check (545 checkpoints, exit code 0)
• Apply decision logic and post review (Case E: approved)

Result: No new app routes were introduced. All existing coverage is intact. PR approved. ✅

View job

[mamigot]

✅ E2E Coverage — No Issues

No new app routes were introduced. All existing coverage is intact.