refactor(frontend): replace toast system with zibll notyf

assets/css/frontend/enhancements/modal-motion/dark-mode-2.css

@@ -3,12 +3,6 @@
  * 响应式
  * ============================================================ */
 @media (max-width: 640px) {
-    .aksrt-toast-container {
-        right: 8px;
-        left: 8px;
-        max-width: none;
-    }
-
     .aksrt-lightbox__nav {
         width: 36px;
         height: 36px;
@@ -59,10 +53,6 @@
         animation: none !important;
     }
 
-    .aksrt-toast {
-        animation: none !important;
-    }
-
     [data-aksrt-animate] {
         opacity: 1 !important;
         transform: none !important;
@@ -230,15 +220,6 @@ input:focus, textarea:focus, select:focus,
     transform-origin: top;
 }
 
-/* --- Toast 通知动效 --- */
-.aksrt-toast {
-    animation: aksrtToastIn 0.35s var(--ease-out) forwards;
-}
-
-.aksrt-toast--out {
-    animation: aksrtToastOut 0.3s var(--ease) forwards;
-}
-
 /* --- 骨架屏动效 --- */
 .aksrt-skeleton {
     animation: aksrtSkeletonShimmer 1.5s infinite linear;