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/primitives/metadata-ir/src/v16.rs

@@ -205,10 +205,12 @@ impl From<EnumDeprecationInfoIR> for EnumDeprecationInfo {
 impl From<VariantDeprecationInfoIR> for VariantDeprecationInfo {
 	fn from(ir: VariantDeprecationInfoIR) -> Self {
 		match ir {
-			VariantDeprecationInfoIR::DeprecatedWithoutNote =>
-				VariantDeprecationInfo::DeprecatedWithoutNote,
-			VariantDeprecationInfoIR::Deprecated { note, since } =>
-				VariantDeprecationInfo::Deprecated { note, since },
+			VariantDeprecationInfoIR::DeprecatedWithoutNote => {
+				VariantDeprecationInfo::DeprecatedWithoutNote
+			},
+			VariantDeprecationInfoIR::Deprecated { note, since } => {
+				VariantDeprecationInfo::Deprecated { note, since }
+			},
 		}
 	}
 }
@@ -217,10 +219,12 @@ impl From<ItemDeprecationInfoIR> for ItemDeprecationInfo {
 	fn from(ir: ItemDeprecationInfoIR) -> Self {
 		match ir {
 			ItemDeprecationInfoIR::NotDeprecated => ItemDeprecationInfo::NotDeprecated,
-			ItemDeprecationInfoIR::DeprecatedWithoutNote =>
-				ItemDeprecationInfo::DeprecatedWithoutNote,
-			ItemDeprecationInfoIR::Deprecated { note, since } =>
-				ItemDeprecationInfo::Deprecated { note, since },
+			ItemDeprecationInfoIR::DeprecatedWithoutNote => {
+				ItemDeprecationInfo::DeprecatedWithoutNote
+			},
+			ItemDeprecationInfoIR::Deprecated { note, since } => {
+				ItemDeprecationInfo::Deprecated { note, since }
+			},
 		}
 	}
 }