feat: enhance quiz schema with JsonList type and add quiz attempt fields

- Introduced a new 'JsonList' scalar type in the GraphQL schema to handle lists of JSON values, improving data structure flexibility.
- Updated the Quiz schema to replace 'Json' type with 'JsonList' for user input and questions, ensuring consistent data handling.
- Added new fields for retrieving quiz attempts, including individual and multiple attempts, with appropriate authorization checks for user roles.
- Enhanced error handling for quiz attempt retrieval to ensure proper access control and user feedback.

These changes improve the overall functionality and maintainability of the quiz feature, providing a more robust data model and user experience.

src/Graphql/graphql.builder.ts

@@ -78,6 +78,10 @@ export interface SchemaBuilderOption {
       Input: Delta
       Output: Delta
     }
+    JsonList: {
+      Input: JsonValue[]
+      Output: JsonValue[]
+    }
   }
 }
 
@@ -160,6 +164,12 @@ export class Builder extends SchemaBuilder<SchemaBuilderOption> {
       parseLiteral: (ast: ValueNode) => ast as unknown as Delta,
     })
 
+    this.scalarType('JsonList', {
+      serialize: (value) => JSON.stringify(value),
+      parseValue: (value: unknown) => JSON.parse(value as string) as JsonValue[],
+      parseLiteral: (ast: ValueNode) => ast as unknown as JsonValue[],
+    })
+
     this.addScalarType('Json', JSONObjectResolver)
     this.addScalarType('Upload', GraphQLUpload)