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

pezcumulus/teyrchains/pezpallets/tiki/src/lib.rs

@@ -677,15 +677,16 @@ pub mod pezpallet {
 				Tiki::Welati => RoleAssignmentType::Automatic,
 
 				// Elected roles
-				Tiki::Parlementer | Tiki::SerokiMeclise | Tiki::Serok =>
-					RoleAssignmentType::Elected,
+				Tiki::Parlementer | Tiki::SerokiMeclise | Tiki::Serok => {
+					RoleAssignmentType::Elected
+				},
 
 				// Earned roles (automatically given by pezpallet-referral)
-				Tiki::Axa |
-				Tiki::Mamoste |
-				Tiki::Rewsenbîr |
-				Tiki::SerokêKomele |
-				Tiki::ModeratorêCivakê => RoleAssignmentType::Earned,
+				Tiki::Axa
+				| Tiki::Mamoste
+				| Tiki::Rewsenbîr
+				| Tiki::SerokêKomele
+				| Tiki::ModeratorêCivakê => RoleAssignmentType::Earned,
 
 				// Appointed roles (default)
 				_ => RoleAssignmentType::Appointed,