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/pezkuwi-omni-node/lib/src/common/runtime.rs

@@ -18,12 +18,12 @@
 
 use codec::Decode;
 use pezcumulus_client_service::TeyrchainHostFunctions;
+use pezkuwi_subxt_metadata::Metadata;
 use pezsc_chain_spec::ChainSpec;
 use pezsc_executor::WasmExecutor;
 use pezsc_runtime_utilities::fetch_latest_metadata_from_code_blob;
 use scale_info::{form::PortableForm, TypeDef, TypeDefPrimitive};
 use std::fmt::Display;
-use pezkuwi_subxt_metadata::Metadata;
 
 /// Expected teyrchain system pezpallet runtime type name.
 pub const DEFAULT_TEYRCHAIN_SYSTEM_PALLET_NAME: &str = "TeyrchainSystem";

pezcumulus/pezkuwi-omni-node/lib/src/common/spec.rs

@@ -613,22 +613,24 @@ where
 		node_extra_args: NodeExtraArgs,
 	) -> Pin<Box<dyn Future<Output = pezsc_service::error::Result<TaskManager>>>> {
 		match teyrchain_config.network.network_backend {
-			pezsc_network::config::NetworkBackendType::Libp2p =>
+			pezsc_network::config::NetworkBackendType::Libp2p => {
 				<Self as NodeSpec>::start_node::<pezsc_network::NetworkWorker<_, _>>(
 					teyrchain_config,
 					pezkuwi_config,
 					collator_options,
 					hwbench,
 					node_extra_args,
-				),
-			pezsc_network::config::NetworkBackendType::Litep2p =>
+				)
+			},
+			pezsc_network::config::NetworkBackendType::Litep2p => {
 				<Self as NodeSpec>::start_node::<pezsc_network::Litep2pNetworkBackend>(
 					teyrchain_config,
 					pezkuwi_config,
 					collator_options,
 					hwbench,
 					node_extra_args,
-				),
+				)
+			},
 		}
 	}
 }