PR for Safeswap order graphql

[clintjeff2]

📝 Implement Order Module (CRUD + Status Update)

🛠️ Issue

• Closes [FEAT]: Implement Orders Module (GraphQL API) #242

📖 Description

This pull request implements a full-featured GraphQL Order module using NestJS and Prisma. It includes all key CRUD operations and a robust order status update flow using enum-based validation.

✅ Changes made

• ✅ Created Order entity with GraphQL schema and Prisma model
• ✅ Implemented CreateOrderInput, UpdateOrderStatusInput, and enum OrderStatus
• ✅ Added query resolvers: getOrdersByBuyer, getOrdersBySeller, getOrder
• ✅ Added mutation resolvers: createOrder, updateOrderStatus
• ✅ Integrated GraphQL enum registration for OrderStatus
• ✅ Fully tested mutations and queries via Postman
• ✅ Implemented error handling and enum compatibility fixes

🧪 Testing Summary

All GraphQL queries and mutations were tested using Postman with variable-based requests, ensuring type safety and correct enum resolution in the schema.

🖼️ Media (screenshots)

1. ✅ Order Test in Postman

2. ✅ Complete Migration and update of camelCase to snake_case in Terminal

3. ✅ Orders by Buyer Address

4. ✅ Orders by Seller Address

5. ✅ Get Order by ID

6. ✅ Create Order

7. ✅ Update Order Status

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[derianrddev]

Great job! Thank you very much!