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

bizinikiwi/pezframe/im-online/src/lib.rs

@@ -532,8 +532,8 @@ impl<T: Config> Pezpallet<T> {
 	fn is_online_aux(authority_index: AuthIndex, authority: &ValidatorId<T>) -> bool {
 		let current_session = T::ValidatorSet::session_index();
 
-		ReceivedHeartbeats::<T>::contains_key(current_session, authority_index) ||
-			AuthoredBlocks::<T>::get(current_session, authority) != 0
+		ReceivedHeartbeats::<T>::contains_key(current_session, authority_index)
+			|| AuthoredBlocks::<T>::get(current_session, authority) != 0
 	}
 
 	/// Returns `true` if a heartbeat has been received for the authority at `authority_index` in
@@ -583,8 +583,8 @@ impl<T: Config> Pezpallet<T> {
 			// haven't sent an heartbeat yet we'll send one unconditionally. the idea is to prevent
 			// all nodes from sending the heartbeats at the same block and causing a temporary (but
 			// deterministic) spike in transactions.
-			progress >= START_HEARTBEAT_FINAL_PERIOD ||
-				progress >= START_HEARTBEAT_RANDOM_PERIOD && random_choice(progress)
+			progress >= START_HEARTBEAT_FINAL_PERIOD
+				|| progress >= START_HEARTBEAT_RANDOM_PERIOD && random_choice(progress)
 		} else {
 			// otherwise we fallback to using the block number calculated at the beginning
 			// of the session that should roughly correspond to the middle of the session
@@ -695,8 +695,9 @@ impl<T: Config> Pezpallet<T> {
 				// we will re-send it.
 				match status {
 					// we are still waiting for inclusion.
-					Ok(Some(status)) if status.is_recent(session_index, now) =>
-						Err(OffchainErr::WaitingForInclusion(status.sent_at)),
+					Ok(Some(status)) if status.is_recent(session_index, now) => {
+						Err(OffchainErr::WaitingForInclusion(status.sent_at))
+					},
 					// attempt to set new status
 					_ => Ok(HeartbeatStatus { session_index, sent_at: now }),
 				}

bizinikiwi/pezframe/im-online/src/tests.rs

@@ -125,8 +125,9 @@ fn heartbeat(
 		signature: signature.clone(),
 	})
 	.map_err(|e| match e {
-		TransactionValidityError::Invalid(InvalidTransaction::Custom(INVALID_VALIDATORS_LEN)) =>
-			"invalid validators len",
+		TransactionValidityError::Invalid(InvalidTransaction::Custom(INVALID_VALIDATORS_LEN)) => {
+			"invalid validators len"
+		},
 		e @ _ => <&'static str>::from(e),
 	})?;
 	ImOnline::heartbeat(RuntimeOrigin::none(), heartbeat, signature)
@@ -226,8 +227,9 @@ fn should_generate_heartbeats() {
 		// check stuff about the transaction.
 		let ex: Extrinsic = Decode::decode(&mut &*transaction).unwrap();
 		let heartbeat = match ex.function {
-			crate::mock::RuntimeCall::ImOnline(crate::Call::heartbeat { heartbeat, .. }) =>
-				heartbeat,
+			crate::mock::RuntimeCall::ImOnline(crate::Call::heartbeat { heartbeat, .. }) => {
+				heartbeat
+			},
 			e => panic!("Unexpected call: {:?}", e),
 		};
 
@@ -340,8 +342,9 @@ fn should_not_send_a_report_if_already_online() {
 		// check stuff about the transaction.
 		let ex: Extrinsic = Decode::decode(&mut &*transaction).unwrap();
 		let heartbeat = match ex.function {
-			crate::mock::RuntimeCall::ImOnline(crate::Call::heartbeat { heartbeat, .. }) =>
-				heartbeat,
+			crate::mock::RuntimeCall::ImOnline(crate::Call::heartbeat { heartbeat, .. }) => {
+				heartbeat
+			},
 			e => panic!("Unexpected call: {:?}", e),
 		};