fix(catalog) : retry transient storage quorum failures

lib/catalog/sync-retry.ts

@@ -0,0 +1,16 @@
+export async function retryTransient<T>(label: string, task: () => Promise<T>, signal?: AbortSignal): Promise<T> {
+  for (let attempt = 1; ; attempt += 1) {
+    signal?.throwIfAborted();
+    try {
+      return await task();
+    } catch (cause) {
+      signal?.throwIfAborted();
+      const message = cause instanceof Error ? cause.message : String(cause);
+      // Storage quorum failures can recover when a disconnected replica rejoins.
+      if (attempt >= 3 || !/timed out|timeout|unexpected error has occurred|could not reach quorum|network error: not connected/i.test(message)) {
+        throw new Error(`${label}: ${message}`, { cause });
+      }
+      await new Promise((resolve) => setTimeout(resolve, attempt * 1_000));
+    }
+  }
+}