refactor: Rename variable in cleanup_expired! method for clarity

Author: eliasjpr

src/models/par_request.cr

@@ -45,7 +45,7 @@ module Authority
     # Cleanup expired and used requests, returns count of deleted rows
     def self.cleanup_expired! : Int64
       # Fetch and delete in memory to avoid complex DSL issues
-      requests = ParRequest.query.all.select { |r| r.expired? || r.used? }
+      requests = ParRequest.query.all.select { |request| request.expired? || request.used? }
       count = requests.size.to_i64
       requests.each(&.delete!)
       count

src/schemas/app_schema.cr

@@ -219,5 +219,4 @@ AppSchema = CQL::Schema.define(
     timestamps
     foreign_key [:user_id], references: :oauth_owners, references_columns: [:id], on_delete: :cascade
   end
-
 end