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/inclusion/mod.rs

@@ -792,8 +792,8 @@ impl<T: Config> Pezpallet<T> {
 
 		match maybe_amount_validated {
 			Ok(amount_validated) => ensure!(
-				amount_validated >=
-					effective_minimum_backing_votes(group_vals.len(), minimum_backing_votes),
+				amount_validated
+					>= effective_minimum_backing_votes(group_vals.len(), minimum_backing_votes),
 				Error::<T>::InsufficientBacking,
 			),
 			Err(()) => {
@@ -1274,8 +1274,8 @@ impl<T: Config> CandidateCheckContext<T> {
 		);
 
 		ensure!(
-			backed_candidate_receipt.descriptor.para_head() ==
-				backed_candidate_receipt.commitments.head_data.hash(),
+			backed_candidate_receipt.descriptor.para_head()
+				== backed_candidate_receipt.commitments.head_data.hash(),
 			Error::<T>::ParaHeadMismatch,
 		);
 

pezkuwi/runtime/teyrchains/src/inclusion/tests.rs

@@ -151,8 +151,8 @@ pub(crate) fn back_candidate(
 		|i| Some(validators[group[i].0 as usize].public().into()),
 	)
 	.ok()
-	.unwrap_or(0) >=
-		threshold;
+	.unwrap_or(0)
+		>= threshold;
 
 	match kind {
 		BackingKind::Unanimous | BackingKind::Threshold => assert!(successfully_backed),
@@ -207,8 +207,8 @@ pub(crate) fn run_to_block(
 }
 
 pub(crate) fn expected_bits() -> usize {
-	paras::Teyrchains::<Test>::get().len() +
-		configuration::ActiveConfig::<Test>::get().scheduler_params.num_cores as usize
+	paras::Teyrchains::<Test>::get().len()
+		+ configuration::ActiveConfig::<Test>::get().scheduler_params.num_cores as usize
 }
 
 fn default_bitfield() -> AvailabilityBitfield {