Fix SSL SAN cert + React hydration #423

- SAN cert covers all 5 PWA domains (tasks,cal,plans,goals,chat)
- i18n hydration: SSR uses cs default, localStorage after mount
- Matches ThemeProvider pattern

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/tasks/components/Header.tsx

@@ -48,7 +48,7 @@ export default function Header() {
                 <path strokeLinecap="round" strokeLinejoin="round" d="M5 13l4 4L19 7" />
               </svg>
             </div>
-            <span className="text-lg font-bold tracking-tight hidden sm:inline">Task Team</span>
+            <span className="text-lg font-bold tracking-tight hidden sm:inline">{t("common.appName")}</span>
           </Link>
 
           {/* Right: Desktop controls */}