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/runtime/teyrchains/src/on_demand/mod.rs

@@ -615,8 +615,8 @@ where
 		// (queue_size / queue_capacity) - target_queue_utilisation
 		let queue_util_ratio = FixedU128::from_rational(queue_size.into(), queue_capacity.into());
 		let positive = queue_util_ratio >= target_queue_utilisation.into();
-		let queue_util_diff = queue_util_ratio.max(target_queue_utilisation.into()) -
-			queue_util_ratio.min(target_queue_utilisation.into());
+		let queue_util_diff = queue_util_ratio.max(target_queue_utilisation.into())
+			- queue_util_ratio.min(target_queue_utilisation.into());
 
 		// variability * queue_util_diff
 		let var_times_qud = queue_util_diff.saturating_mul(variability.into());
@@ -667,8 +667,9 @@ where
 
 		match affinity {
 			None => FreeEntries::<T>::mutate(|entries| entries.push(order)),
-			Some(affinity) =>
-				AffinityEntries::<T>::mutate(affinity.core_index, |entries| entries.push(order)),
+			Some(affinity) => {
+				AffinityEntries::<T>::mutate(affinity.core_index, |entries| entries.push(order))
+			},
 		}
 	}
 
@@ -729,13 +730,14 @@ where
 	/// `CoreIndex`.
 	fn increase_affinity(para_id: ParaId, core_index: CoreIndex) {
 		ParaIdAffinity::<T>::mutate(para_id, |maybe_affinity| match maybe_affinity {
-			Some(affinity) =>
+			Some(affinity) => {
 				if affinity.core_index == core_index {
 					*maybe_affinity = Some(CoreAffinityCount {
 						core_index,
 						count: affinity.count.saturating_add(1),
 					});
-				},
+				}
+			},
 			None => {
 				*maybe_affinity = Some(CoreAffinityCount { core_index, count: 1 });
 			},