Pull Request Description

Upgrade to Aspire 9.3

Checklist

• My code follows the DDD principles
• I've used the latest C# features and idioms
• I've added/updated unit tests for business logic
• Service boundaries are maintained (no cross-service direct dependencies)
• Repository pattern is used for data access
• Domain Events are used for cross-service communication
• I've registered new services in AppHost project (if applicable)
• I've updated both entities and DTOs (if applicable)