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

pezbridges/relays/equivocation/src/block_checker.rs

@@ -39,8 +39,9 @@ impl<P: EquivocationDetectionPipeline> ReadSyncedHeaders<P> {
 		target_client: &mut TC,
 	) -> Result<ReadContext<P>, Self> {
 		match target_client.synced_headers_finality_info(self.target_block_num).await {
-			Ok(synced_headers) =>
-				Ok(ReadContext { target_block_num: self.target_block_num, synced_headers }),
+			Ok(synced_headers) => {
+				Ok(ReadContext { target_block_num: self.target_block_num, synced_headers })
+			},
 			Err(e) => {
 				tracing::error!(
 					target: "bridge",
@@ -127,13 +128,14 @@ impl<P: EquivocationDetectionPipeline> FindEquivocations<P> {
 				&synced_header.finality_proof,
 				finality_proofs_buf.buf().as_slice(),
 			) {
-				Ok(equivocations) =>
+				Ok(equivocations) => {
 					if !equivocations.is_empty() {
 						result.push(ReportEquivocations {
 							source_block_hash: self.context.synced_header_hash,
 							equivocations,
 						})
-					},
+					}
+				},
 				Err(e) => {
 					tracing::error!(
 						target: "bridge",
@@ -272,23 +274,23 @@ mod tests {
 
 	impl PartialEq for ReadContext<TestEquivocationDetectionPipeline> {
 		fn eq(&self, other: &Self) -> bool {
-			self.target_block_num == other.target_block_num &&
-				self.synced_headers == other.synced_headers
+			self.target_block_num == other.target_block_num
+				&& self.synced_headers == other.synced_headers
 		}
 	}
 
 	impl PartialEq for FindEquivocations<TestEquivocationDetectionPipeline> {
 		fn eq(&self, other: &Self) -> bool {
-			self.target_block_num == other.target_block_num &&
-				self.synced_headers == other.synced_headers &&
-				self.context == other.context
+			self.target_block_num == other.target_block_num
+				&& self.synced_headers == other.synced_headers
+				&& self.context == other.context
 		}
 	}
 
 	impl PartialEq for ReportEquivocations<TestEquivocationDetectionPipeline> {
 		fn eq(&self, other: &Self) -> bool {
-			self.source_block_hash == other.source_block_hash &&
-				self.equivocations == other.equivocations
+			self.source_block_hash == other.source_block_hash
+				&& self.equivocations == other.equivocations
 		}
 	}