style: Migrate to stable-only rustfmt configuration

- Remove nightly-only features from .rustfmt.toml and vendor/ss58-registry/rustfmt.toml
- Removed features: imports_granularity, wrap_comments, comment_width,
  reorder_impl_items, spaces_around_ranges, binop_separator,
  match_arm_blocks, trailing_semicolon, trailing_comma
- Format all 898 affected files with stable rustfmt
- Ensures long-term reliability without nightly toolchain dependency

pezcumulus/client/relay-chain-minimal-node/src/lib.rs

@@ -109,19 +109,21 @@ async fn build_interface(
 	let blockchain_rpc_client = Arc::new(BlockChainRpcClient::new(client.clone()));
 	let collator_node =
 		match pezkuwi_config.network.network_backend {
-			pezsc_network::config::NetworkBackendType::Libp2p =>
+			pezsc_network::config::NetworkBackendType::Libp2p => {
 				new_minimal_relay_chain::<
 					RelayBlock,
 					pezsc_network::NetworkWorker<RelayBlock, RelayHash>,
 				>(pezkuwi_config, collator_pair.clone(), blockchain_rpc_client)
-				.await?,
-			pezsc_network::config::NetworkBackendType::Litep2p =>
+				.await?
+			},
+			pezsc_network::config::NetworkBackendType::Litep2p => {
 				new_minimal_relay_chain::<RelayBlock, pezsc_network::Litep2pNetworkBackend>(
 					pezkuwi_config,
 					collator_pair.clone(),
 					blockchain_rpc_client,
 				)
-				.await?,
+				.await?
+			},
 		};
 	task_manager.add_child(collator_node.task_manager);
 	Ok((

pezcumulus/client/relay-chain-minimal-node/src/network.rs

@@ -110,8 +110,8 @@ pub(crate) fn build_collator_network<Network: NetworkBackend<Block, Hash>>(
 }
 
 fn adjust_network_config_light_in_peers(config: &mut NetworkConfiguration) {
-	let light_client_in_peers = (config.default_peers_set.in_peers +
-		config.default_peers_set.out_peers)
+	let light_client_in_peers = (config.default_peers_set.in_peers
+		+ config.default_peers_set.out_peers)
 		.saturating_sub(config.default_peers_set_num_full);
 	if light_client_in_peers > 0 {
 		tracing::debug!(target: crate::LOG_TARGET, "Detected {light_client_in_peers} peer slots for light clients. Since this minimal node does support\