[AWS::BedrockAgentCore::Memory] - [BUG] - SummaryMemoryStrategy seems to have return values mistakenly mixed into properties

### Name of the resource

Other

### Resource Name

AWS::BedrockAgentCore::Memory

### Issue Description

Properties of SummaryMemoryStrategy [currently](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-properties-bedrockagentcore-memory-summarymemorystrategy.html) are

```
{
"CreatedAt" : String,
"Description" : String,
"Name" : String,
"Namespaces" : [ String, ... ],
"Status" : String,
"StrategyId" : String,
"Type" : String,
"UpdatedAt" : String
}
```

Many of these are not part of the [SummaryMemoryStrategyInput](https://docs.aws.amazon.com/bedrock-agentcore-control/latest/APIReference/API_SummaryMemoryStrategyInput.html) object of the API but rather seem mixed in common return values (CreatedAt, UpdatedAt) or Memory specific ones (Status, StrategyId)

### Expected Behavior

The properties being limited to the ones of the [SummaryMemoryStrategyInput](https://docs.aws.amazon.com/bedrock-agentcore-control/latest/APIReference/API_SummaryMemoryStrategyInput.html) object

### Observed Behavior

Superfluous properties that do not make sense mixed in

### Test Cases

Look at [definition](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-properties-bedrockagentcore-memory-summarymemorystrategy.html)

### Other Details

_No response_

Start by comparing the SummaryMemoryStrategy definition linked in the issue with the SummaryMemoryStrategyInput API reference. Identify where this CloudFormation resource's properties are defined, then ensure the published properties match the input object and no return-only fields remain. Done means the resource definition documents only the intended input properties.

Written by the indexing model from the issue text.