refactor: enhance message streaming and UI components; add SWR provider

services/frontend/src/lib/utils.ts

@@ -4,16 +4,3 @@ import { twMerge } from "tailwind-merge";
 export function cn(...inputs: ClassValue[]) {
   return twMerge(clsx(inputs));
 }
-
-/**
- * Returns an inline style that staggers a list item's entrance animation.
- * Pair with the `animate-stagger` class. Caps the delay so long lists still
- * appear promptly.
- */
-export function staggerDelay(
-  index: number,
-  step = 45,
-  max = 600,
-): React.CSSProperties {
-  return { animationDelay: `${Math.min(index * step, max)}ms` };
-}

services/frontend/src/lib/ws-hook.ts

@@ -1,6 +1,7 @@
-import type { WsEventType } from "./ws/types";
+import type { WsEventType, WsStatus } from "./ws/types";
 
 export type WsHook = {
+  status?: WsStatus;
   on: <E extends WsEventType>(
     eventType: E,
     handler: (data: unknown) => void,