Increase receive timeout from 50ms to 1000ms in synchronous_query_relays_with_progress

The 50ms receive timeout was too short for relays that need time to
process a REQ query before responding. The pool's query_sync already
uses 1000ms. This matches that behavior to avoid premature timeouts.

nostr_core/core_relays.c

@@ -195,9 +195,10 @@ cJSON** synchronous_query_relays_with_progress(
                 continue;
             }
             
-            // Try to receive message (short timeout to keep UI responsive)
+            // Try to receive message (1000ms timeout to allow relay time
+            // to respond — matches nostr_relay_pool_query_sync behavior)
             char buffer[262144];
-            int len = nostr_ws_receive(relay->client, buffer, sizeof(buffer)-1, 50);
+            int len = nostr_ws_receive(relay->client, buffer, sizeof(buffer)-1, 1000);
             
             if (len > 0) {
                 buffer[len] = '\0';