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/teyrchains/integration-tests/emulated/tests/people/people-pezkuwichain/src/lib.rs

@@ -35,10 +35,7 @@ mod imports {
 			PeoplePezkuwichainParaPezpallet,
 			PeoplePezkuwichainParaPezpallet as PeoplePezkuwichainPallet,
 		},
-		pezkuwichain_emulated_chain::{
-			genesis::ED as PEZKUWICHAIN_ED,
-			PezkuwichainRelayPezpallet,
-		},
+		pezkuwichain_emulated_chain::{genesis::ED as PEZKUWICHAIN_ED, PezkuwichainRelayPezpallet},
 		AssetHubPezkuwichainPara as AssetHubPezkuwichain,
 		AssetHubPezkuwichainParaReceiver as AssetHubPezkuwichainReceiver,
 		PeoplePezkuwichainPara as PeoplePezkuwichain,

pezcumulus/teyrchains/integration-tests/emulated/tests/people/people-zagros/src/lib.rs

@@ -28,8 +28,7 @@ mod imports {
 	pub(crate) use zagros_system_emulated_network::{
 		self,
 		asset_hub_zagros_emulated_chain::{
-			AssetHubZagrosParaPezpallet,
-			AssetHubZagrosParaPezpallet as AssetHubZagrosPallet,
+			AssetHubZagrosParaPezpallet, AssetHubZagrosParaPezpallet as AssetHubZagrosPallet,
 		},
 		collectives_zagros_emulated_chain::CollectivesZagrosParaPezpallet,
 		coretime_zagros_emulated_chain::CoretimeZagrosParaPezpallet,
@@ -38,18 +37,11 @@ mod imports {
 				self, xcm_config::XcmConfig as PeopleZagrosXcmConfig,
 				ExistentialDeposit as PeopleZagrosExistentialDeposit,
 			},
-			PeopleZagrosParaPezpallet,
-			PeopleZagrosParaPezpallet as PeopleZagrosPallet,
-		},
-		pez_penpal_emulated_chain::{
-			PenpalAssetOwner,
-			PenpalBParaPezpallet,
+			PeopleZagrosParaPezpallet, PeopleZagrosParaPezpallet as PeopleZagrosPallet,
 		},
+		pez_penpal_emulated_chain::{PenpalAssetOwner, PenpalBParaPezpallet},
 		pezbridge_hub_zagros_emulated_chain::BridgeHubZagrosParaPezpallet,
-		zagros_emulated_chain::{
-			genesis::ED as ZAGROS_ED,
-			ZagrosRelayPezpallet,
-		},
+		zagros_emulated_chain::{genesis::ED as ZAGROS_ED, ZagrosRelayPezpallet},
 		AssetHubZagrosPara as AssetHubZagros, AssetHubZagrosParaReceiver as AssetHubZagrosReceiver,
 		BridgeHubZagrosPara as BridgeHubZagros, CollectivesZagrosPara as CollectivesZagros,
 		CoretimeZagrosPara as CoretimeZagros, PenpalBPara as PenpalB,