fix(loading): remove animation from LoadingOverlay for improved performance

components/LoadingOverlay.tsx

@@ -22,7 +22,7 @@ export default function LoadingOverlay({
   }, [])
 
   const content = (
-    <div className="fixed inset-0 z-[9999] flex items-center justify-center bg-white dark:bg-neutral-950 animate-in fade-in duration-200">
+    <div className="fixed inset-0 z-[9999] flex items-center justify-center bg-white dark:bg-neutral-950">
       <div className="flex flex-col items-center gap-6">
         <div className="flex items-center gap-3">
           <img 

lib/auth/context.tsx

@@ -136,7 +136,8 @@ export function AuthProvider({ children }: { children: React.ReactNode }) {
                      
                      // * Force hard reload to ensure browser sends new cookie to backend
                      // * router.refresh() is not enough for Client Components fetching data immediately
-                     window.location.reload()
+                     // window.location.reload()
+                     router.refresh()
                  }
              } catch (e) {
                  console.error('Failed to auto-switch context', e)