Please provide the issue number

Issue number: #969

Summary

Changes

This pull request adds strongly-typed batch processing with automatic deserialization support for SQS, Kinesis, and DynamoDB events.

New Features

• Typed Record Handlers: ITypedRecordHandler and ITypedRecordHandlerWithContext interfaces for strongly-typed processing
• Typed Batch Processors: TypedSqsBatchProcessor, TypedKinesisEventBatchProcessor, TypedDynamoDbStreamBatchProcessor
• Fluent API Builder: BatchProcessorBuilder<TEvent, TRecord> for programmatic configuration
• Auto-Deserialization: Automatic JSON deserialization from event records to user-defined types

Documentation updates

• New section in each processor added that explains the new Typed approach.
• Dedicated section on Typed approach

User experience

Introduce strongly-typed batch processing that automatically handles deserialization:

New Interface-based Approach:

public class OrderHandler : ITypedRecordHandler<Order>
{
 public async Task<RecordHandlerResult> HandleAsync(Order order, CancellationToken cancellationToken)
 {
 // Direct access to strongly-typed object - no manual deserialization!
 await ProcessOrder(order);
 return RecordHandlerResult.Successful;
 }
}

Fluent API Builder:

var result = await TypedSqsBatchProcessorBuilder.Create()
 .WithJsonSerializerContext(MyJsonContext.Default)
 .Handler<Order>(async (order, ct) => {
 await ProcessOrder(order);
 return RecordHandlerResult.Successful;
 })
 .ProcessAsync(sqsEvent, context);

Checklist

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• Meets tenets criteria
• I have performed a self-review of this change
• Changes have been tested
• Changes are documented
• PR title follows conventional commit semantics

Acknowledgment

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