Fix cargo fmt formatting

Apply cargo fmt to p2p_impl.rs for consistent code formatting.

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Co-Authored-By: Claude <[email protected]>

Author: sanity

crates/core/src/node/p2p_impl.rs

@@ -292,9 +292,10 @@ impl NodeP2P {
         .boxed();
 
         // Spawn the periodic batch announcement task for proximity cache
-        proximity_cache
-            .clone()
-            .spawn_periodic_batch_announcements(notification_tx_clone.clone(), Arc::downgrade(&op_manager));
+        proximity_cache.clone().spawn_periodic_batch_announcements(
+            notification_tx_clone.clone(),
+            Arc::downgrade(&op_manager),
+        );
 
         // Spawn the startup batch flusher to send batched announcements after grace period
         proximity_cache