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/client/network/src/protocol_controller.rs

@@ -372,8 +372,9 @@ impl ProtocolController {
 	/// Process connection event.
 	fn process_event(&mut self, event: Event) {
 		match event {
-			Event::IncomingConnection(peer_id, index) =>
-				self.on_incoming_connection(peer_id, index),
+			Event::IncomingConnection(peer_id, index) => {
+				self.on_incoming_connection(peer_id, index)
+			},
 			Event::Dropped(peer_id) => self.on_peer_dropped(peer_id),
 		}
 	}
@@ -386,8 +387,9 @@ impl ProtocolController {
 			Action::SetReservedPeers(peer_ids) => self.on_set_reserved_peers(peer_ids),
 			Action::SetReservedOnly(reserved_only) => self.on_set_reserved_only(reserved_only),
 			Action::DisconnectPeer(peer_id) => self.on_disconnect_peer(peer_id),
-			Action::GetReservedPeers(pending_response) =>
-				self.on_get_reserved_peers(pending_response),
+			Action::GetReservedPeers(pending_response) => {
+				self.on_get_reserved_peers(pending_response)
+			},
 		}
 	}
 
@@ -516,8 +518,8 @@ impl ProtocolController {
 
 		if let PeerState::Connected(direction) = state {
 			// Disconnect if we're at (or over) the regular node limit
-			let disconnect = self.reserved_only ||
-				match direction {
+			let disconnect = self.reserved_only
+				|| match direction {
 					Direction::Inbound => self.num_in >= self.max_in,
 					Direction::Outbound => self.num_out >= self.max_out,
 				};
@@ -671,13 +673,14 @@ impl ProtocolController {
 					*direction = Direction::Inbound;
 					self.accept_connection(peer_id, incoming_index);
 				},
-				PeerState::NotConnected =>
+				PeerState::NotConnected => {
 					if self.peer_store.is_banned(&peer_id.into()) {
 						self.reject_connection(peer_id, incoming_index);
 					} else {
 						*state = PeerState::Connected(Direction::Inbound);
 						self.accept_connection(peer_id, incoming_index);
-					},
+					}
+				},
 			}
 			return;
 		}
@@ -827,8 +830,8 @@ impl ProtocolController {
 			.outgoing_candidates(available_slots, ignored)
 			.into_iter()
 			.filter_map(|peer_id| {
-				(!self.reserved_nodes.contains_key(&peer_id.into()) &&
-					!self.nodes.contains_key(&peer_id.into()))
+				(!self.reserved_nodes.contains_key(&peer_id.into())
+					&& !self.nodes.contains_key(&peer_id.into()))
 				.then_some(peer_id)
 				.or_else(|| {
 					error!(