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

pezkuwi/node/service/src/builder/mod.rs

@@ -231,8 +231,8 @@ where
 		let force_authoring = config.force_authoring;
 		let disable_grandpa = config.disable_grandpa;
 		let name = config.network.node_name.clone();
-		let backoff_authoring_blocks = if !force_authoring_backoff &&
-			(config.chain_spec.is_pezkuwi() || config.chain_spec.is_kusama())
+		let backoff_authoring_blocks = if !force_authoring_backoff
+			&& (config.chain_spec.is_pezkuwi() || config.chain_spec.is_kusama())
 		{
 			// the block authoring backoff is disabled by default on production networks
 			None
@@ -240,9 +240,9 @@ where
 			let mut backoff =
 				pezsc_consensus_slots::BackoffAuthoringOnFinalizedHeadLagging::default();
 
-			if config.chain_spec.is_pezkuwichain() ||
-				config.chain_spec.is_versi() ||
-				config.chain_spec.is_dev()
+			if config.chain_spec.is_pezkuwichain()
+				|| config.chain_spec.is_versi()
+				|| config.chain_spec.is_dev()
 			{
 				// on testnets that are in flux (like pezkuwichain or versi), finality has stalled
 				// sometimes due to operational issues and it's annoying to slow down block
@@ -316,8 +316,8 @@ where
 		//
 		// Collators and teyrchain full nodes require the collator and validator networking to send
 		// collations and to be able to recover PoVs.
-		let notification_services = if role.is_authority() ||
-			is_teyrchain_node.is_running_alongside_teyrchain_node()
+		let notification_services = if role.is_authority()
+			|| is_teyrchain_node.is_running_alongside_teyrchain_node()
 		{
 			use pezkuwi_network_bridge::{peer_sets_info, IsAuthority};
 			let is_authority = if role.is_authority() { IsAuthority::Yes } else { IsAuthority::No };