fix(cms): adjust caching behavior for development environment

- Modified cached function to bypass caching in development mode.
- Updated fetchOpenApi function to return cached data only if not in development mode, ensuring accurate API fetching during development.

src/lib/components/Header.svelte

@@ -96,6 +96,7 @@
   <div class="flex items-center justify-between container-custom py-2">
     <a
       href="/"
+      aria-label={t(T.site_name_fallback)}
       class="logo flex items-center origin-left font-bold text-lg tracking-wide hover:scale-[1.12] transition-transform duration-200 ease-out relative"
     >
       {#if logoSvgHtml}
@@ -178,9 +179,10 @@
       </button>
       <button
         type="button"
-        class="p-2 -mr-2 hover:bg-stein-0/10 rounded-md transition-colors aria-expanded={menuOpen} flex items-center justify-center"
+        class="p-2 -mr-2 hover:bg-stein-0/10 rounded-md transition-colors flex items-center justify-center"
         aria-label={menuOpen ? t(T.header_menu_close) : t(T.header_menu_open)}
-        aria-controls="mobile-nav"
+        aria-controls={menuOpen ? "mobile-nav" : undefined}
+        aria-expanded={menuOpen}
         onclick={toggleMenu}
       >
         <span class="sr-only"