chore: update atoms retry mechanism (#27450)

Co-authored-by: Morgan <33722304+ThyMinimalDev@users.noreply.github.com>

packages/platform/atoms/cal-provider/CalProvider.tsx

@@ -1,16 +1,42 @@
 "use client";
 
-import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
-import { useEffect } from "react";
-
 import { VERSION_2024_06_14 } from "@calcom/platform-constants";
-
+import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
+import { isAxiosError } from "axios";
+import { useEffect } from "react";
 import http from "../lib/http";
 import type { CalProviderProps } from "./BaseCalProvider";
 import { BaseCalProvider } from "./BaseCalProvider";
 import type { translationKeys } from "./languages";
 
-const queryClient = new QueryClient();
+function isRetryableError(error: unknown): boolean {
+  if (!isAxiosError(error) || !error.response) {
+    // network errors or timeouts — retryable
+    return true;
+  }
+  const status = error.response.status;
+  // retry on 408 (timeout), 429 (rate limit), and 5xx (server errors)
+  return status === 408 || status === 429 || status >= 500;
+}
+
+const queryClient: QueryClient = new QueryClient({
+  defaultOptions: {
+    queries: {
+      retry: (failureCount: number, error: unknown): boolean => {
+        if (!isRetryableError(error)) return false;
+        return failureCount < 3;
+      },
+      retryDelay: (attempt: number) => Math.min(1000 * 2 ** attempt, 30000),
+    },
+    mutations: {
+      retry: (failureCount: number, error: unknown): boolean => {
+        if (!isRetryableError(error)) return false;
+        return failureCount < 1;
+      },
+      retryDelay: (attempt: number) => Math.min(1000 * 2 ** attempt, 30000),
+    },
+  },
+});
 
 /**
  * Renders a CalProvider component.
@@ -44,7 +70,7 @@ export function CalProvider({
   version = VERSION_2024_06_14,
   organizationId,
   isEmbed = false,
-}: CalProviderProps) {
+}: CalProviderProps): JSX.Element {
   useEffect(() => {
     http.setVersionHeader(version);
   }, [version]);
@@ -74,7 +100,8 @@ export function CalProvider({
         version={version}
         labels={labels as Record<translationKeys, string>}
         language={language}
-        organizationId={organizationId}>
+        organizationId={organizationId}
+      >
         {children}
       </BaseCalProvider>
     </QueryClientProvider>