cloudformation-include: CfnInclude drops properties if Fn::Transform is present

### Describe the bug

Using CfnInclude on a template with a resource that uses Fn::Transform as a key in the resource's properties elides other properties specified.

### Regression Issue

- [ ] Select this option if this issue appears to be a regression.

### Last Known Working CDK Library Version

_No response_

### Expected Behavior

I expect the other properties besides `Fn::Transform` to be preserved.

### Current Behavior

Only `Fn::Transform` is being parsed and put into the synthesized template.

### Reproduction Steps

```ts
// cfn-include-transform-bug-stack.ts
import { CfnInclude } from 'aws-cdk-lib/cloudformation-include';
import * as cdk from 'aws-cdk-lib/core';
import { Construct } from 'constructs';

export class CfnIncludeTransformBugStack extends cdk.Stack {
constructor(scope: Construct, id: string, props?: cdk.StackProps) {
super(scope, id, props);

new CfnInclude(this, "CfnInclude", {
templateFile: "./template.yml",
})
}
}
```

```yaml
// template.yml
Resources:
Bucket:
Type: AWS::S3::Bucket
Properties:
BucketName: buckety
Fn::Transform:
Name: BucketTransform
Params:
Do: Things
```

This is the synthesized stack resource, observe BucketName is missing.

```json
"Resources": {
"Bucket": {
"Type": "AWS::S3::Bucket",
"Properties": {
"Fn::Transform": {
"Name": "BucketTransform",
"Params": {
"Do": "Things"
}
}
}
},
```

### Possible Solution

I think the bug stems from this assumption
https://github.com/aws/aws-cdk/blob/d8c324ae31db5997f9511e3f43affceea57d86c3/packages/aws-cdk-lib/core/lib/helpers-internal/cfn-parse.ts#L523

In this case, the object is _both_ an actual object and a CFN intrinsic.

Although, this line makes me believe that every property would just be preserved... need to step through with the debugger

https://github.com/aws/aws-cdk/blob/d8c324ae31db5997f9511e3f43affceea57d86c3/packages/aws-cdk-lib/core/lib/helpers-internal/cfn-parse.ts#L712

### Additional Information/Context

_No response_

### AWS CDK Library version (aws-cdk-lib)

2.215.0

### AWS CDK CLI version

2.1033.0 (build 1ec3310)

### Node.js Version

v20.19.2

### OS

MacOS 15.6.1

### Language

TypeScript

### Language Version

5.9.3

### Other information

_No response_

Start in packages/aws-cdk-lib/core/lib/helpers-internal/cfn-parse.ts at the referenced lines around 523 and 712, then reproduce the issue with the provided CfnInclude stack and template.yml. Trace how a resource Properties object containing Fn::Transform is parsed. Done means the synthesized Bucket resource preserves BucketName alongside Fn::Transform.

Written by the indexing model from the issue text.