fix(stepfunctions-tasks): fix bedrock input/output path in step-funct… (#31305)

### Issue # (if applicable)

Closes #31302.

### Reason for this change

PR#30298 introduced a breaking change in the stepfunctions-tasks which was encoding the input/output path from the `TaskStateBaseProps` to be used to input a S3 URI, which is not always the case and customer might be using the JSON string as it is.

### Description of changes

To keep the functionality from the original ask of issue #29229 ,added another props to specify S3 URI as an input to the stepfunctions-tasks.

Introduced a feature flag to keep the existing behaviour for the customers and not introduce a breaking change.

### Description of how you validated changes

Updated integ test and deployed in account

Integ Test Results:
`aws stepfunctions start-execution --state-machine-arn <deployed state machine arn> `: should return execution arn

A5-zEnXPmmPWTJx
{
    "executionArn": "arn:aws:states:us-east-1:XXXX:execution:StateMachine2E01A3A5-zEnXPmmPWTJx:516f2e60-9507-46cb-95e6-4d9453429b08",
    "startDate": "2024-09-04T15:43:33.200000-07:00"
}

`aws stepfunctions describe-execution --execution-arn <exection-arn generated before> `: should return status as SUCCEEDED



### Checklist
- [x] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md)

----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

Author: shikha372

Diff for: packages/@aws-cdk-testing/framework-integ/test/aws-stepfunctions-tasks/test/bedrock/integ.invoke-model.js.snapshot/InvokeModelDefaultTestDeployAssert9C0D2DFC.assets.json

@@ -103,7 +103,7 @@
        {
         "Ref": "AWS::Region"
        },
-       "::foundation-model/amazon.titan-text-express-v1\",\"Body\":{\"inputText.$\":\"States.Format('Alphabetize this list of first names:\\n{}', $.names)\",\"textGenerationConfig\":{\"maxTokenCount\":100,\"temperature\":1}}}},\"Prompt3\":{\"End\":true,\"Type\":\"Task\",\"InputPath\":\"$.names\",\"OutputPath\":\"$.names\",\"Resource\":\"arn:",
+       "::foundation-model/amazon.titan-text-express-v1\",\"Body\":{\"inputText.$\":\"States.Format('Alphabetize this list of first names:/n{}', $.names)\",\"textGenerationConfig\":{\"maxTokenCount\":100,\"temperature\":1}}}},\"Prompt3\":{\"Next\":\"Prompt4\",\"Type\":\"Task\",\"OutputPath\":\"$.Body.results[0].outputText\",\"Resource\":\"arn:",
        {
         "Ref": "AWS::Partition"
        },
@@ -115,7 +115,19 @@
        {
         "Ref": "AWS::Region"
        },
-       "::foundation-model/amazon.titan-text-express-v1\",\"Input\":{\"S3Uri.$\":\"$.names\"},\"Output\":{\"S3Uri.$\":\"$.names\"}}}},\"TimeoutSeconds\":30}"
+       "::foundation-model/amazon.titan-text-express-v1\",\"Body\":{\"inputText.$\":\"States.Format('Echo list of first names: {}', $.names)\",\"textGenerationConfig\":{\"maxTokenCount\":100,\"temperature\":1}}}},\"Prompt4\":{\"End\":true,\"Type\":\"Task\",\"Resource\":\"arn:",
+       {
+        "Ref": "AWS::Partition"
+       },
+       ":states:::bedrock:invokeModel\",\"Parameters\":{\"ModelId\":\"arn:",
+       {
+        "Ref": "AWS::Partition"
+       },
+       ":bedrock:",
+       {
+        "Ref": "AWS::Region"
+       },
+       "::foundation-model/amazon.titan-text-express-v1\",\"Input\":{\"S3Uri\":\"$.names\"},\"Output\":{\"S3Uri\":\"$.names\"}}}},\"TimeoutSeconds\":30}"
       ]
      ]
     },

Diff for: packages/@aws-cdk-testing/framework-integ/test/aws-stepfunctions-tasks/test/bedrock/integ.invoke-model.js.snapshot/aws-stepfunctions-tasks-bedrock-invoke-model-integ.assets.json

@@ -37,7 +37,7 @@ const prompt2 = new BedrockInvokeModel(stack, 'Prompt2', {
   body: sfn.TaskInput.fromObject(
     {
       inputText: sfn.JsonPath.format(
-        'Alphabetize this list of first names:\n{}',
+        'Alphabetize this list of first names:/n{}',
         sfn.JsonPath.stringAt('$.names'),
       ),
       textGenerationConfig: {
@@ -52,13 +52,33 @@ const prompt2 = new BedrockInvokeModel(stack, 'Prompt2', {
   resultPath: '$',
 });
 
+/** Test for Bedrock Output Path */
 const prompt3 = new BedrockInvokeModel(stack, 'Prompt3', {
   model,
-  inputPath: sfn.JsonPath.stringAt('$.names'),
-  outputPath: sfn.JsonPath.stringAt('$.names'),
+  body: sfn.TaskInput.fromObject(
+    {
+      inputText: sfn.JsonPath.format(
+        'Echo list of first names: {}',
+        sfn.JsonPath.stringAt('$.names'),
+      ),
+      textGenerationConfig: {
+        maxTokenCount: 100,
+        temperature: 1,
+      },
+    },
+  ),
+  outputPath: '$.Body.results[0].outputText',
+});
+
+/** Test for Bedrock s3 URI Path */
+//State Machine Execution will fail for the following input as it expects a valid s3 URI from previous prompt
+const prompt4 = new BedrockInvokeModel(stack, 'Prompt4', {
+  model,
+  input: { s3InputUri: '$.names' },
+  output: { s3OutputUri: '$.names' },
 });
 
-const chain = sfn.Chain.start(prompt1).next(prompt2).next(prompt3);
+const chain = sfn.Chain.start(prompt1).next(prompt2).next(prompt3).next(prompt4);
 
 new sfn.StateMachine(stack, 'StateMachine', {
   definitionBody: sfn.DefinitionBody.fromChainable(chain),

Diff for: packages/@aws-cdk-testing/framework-integ/test/aws-stepfunctions-tasks/test/bedrock/integ.invoke-model.js.snapshot/aws-stepfunctions-tasks-bedrock-invoke-model-integ.template.json

@@ -71,6 +71,8 @@ Flags come in three types:
 | [@aws-cdk/pipelines:reduceAssetRoleTrustScope](#aws-cdkpipelinesreduceassetroletrustscope) | Remove the root account principal from PipelineAssetsFileRole trust policy | 2.141.0 | (default) |
 | [@aws-cdk/aws-ecs:removeDefaultDeploymentAlarm](#aws-cdkaws-ecsremovedefaultdeploymentalarm) | When enabled, remove default deployment alarm settings | 2.143.0 | (default) |
 | [@aws-cdk/custom-resources:logApiResponseDataPropertyTrueDefault](#aws-cdkcustom-resourceslogapiresponsedatapropertytruedefault) | When enabled, the custom resource used for `AwsCustomResource` will configure the `logApiResponseData` property as true by default | 2.145.0 | (fix) |
+| [@aws-cdk/aws-s3:keepNotificationInImportedBucket](#aws-cdkaws-s3keepnotificationinimportedbucket) | When enabled, Adding notifications to a bucket in the current stack will not remove notification from imported stack. | 2.155.0 | (fix) |
+| [@aws-cdk/aws-stepfunctions-tasks:useNewS3UriParametersForBedrockInvokeModelTask](#aws-cdkaws-stepfunctions-tasksusenews3uriparametersforbedrockinvokemodeltask) | When enabled, use new props for S3 URI field in task definition of state machine for bedrock invoke model. | V2NEXT | (fix) |
 
 <!-- END table -->
 
@@ -131,7 +133,9 @@ The following json shows the current recommended set of flags, as `cdk init` wou
     "@aws-cdk/aws-eks:nodegroupNameAttribute": true,
     "@aws-cdk/aws-ec2:ebsDefaultGp3Volume": true,
     "@aws-cdk/aws-ecs:removeDefaultDeploymentAlarm": true,
-    "@aws-cdk/custom-resources:logApiResponseDataPropertyTrueDefault": false
+    "@aws-cdk/custom-resources:logApiResponseDataPropertyTrueDefault": false,
+    "@aws-cdk/aws-s3:keepNotificationInImportedBucket": false,
+    "@aws-cdk/aws-stepfunctions-tasks:useNewS3UriParametersForBedrockInvokeModelTask": true
   }
 }
 ```
@@ -1338,4 +1342,38 @@ property from the event object.
 | 2.145.0 | `false` | `false` |
 
 
+### @aws-cdk/aws-s3:keepNotificationInImportedBucket
+
+*When enabled, Adding notifications to a bucket in the current stack will not remove notification from imported stack.* (fix)
+
+Currently, adding notifications to a bucket where it was created by ourselves will override notification added where it is imported.
+
+When this feature flag is enabled, adding notifications to a bucket in the current stack will only update notification defined in this stack.
+Other notifications that are not managed by this stack will be kept.
+
+
+| Since | Default | Recommended |
+| ----- | ----- | ----- |
+| (not in v1) |  |  |
+| 2.155.0 | `false` | `false` |
+
+
+### @aws-cdk/aws-stepfunctions-tasks:useNewS3UriParametersForBedrockInvokeModelTask
+
+*When enabled, use new props for S3 URI field in task definition of state machine for bedrock invoke model.* (fix)
+
+Currently, 'inputPath' and 'outputPath' from the TaskStateBase Props is being used under BedrockInvokeModelProps to define S3URI under 'input' and 'output' fields
+of State Machine Task definition.
+
+When this feature flag is enabled, specify newly introduced props 's3InputUri' and 
+'s3OutputUri' to populate S3 uri under input and output fields in state machine task definition for Bedrock invoke model.
+
+
+| Since | Default | Recommended |
+| ----- | ----- | ----- |
+| (not in v1) |  |  |
+| V2NEXT | `true` | `true` |
+
+**Compatibility with old behavior:** Disable the feature flag to use input and output path fields for s3 URI
+
 <!-- END details -->

Diff for: packages/@aws-cdk-testing/framework-integ/test/aws-stepfunctions-tasks/test/bedrock/integ.invoke-model.js.snapshot/cdk.out

@@ -398,11 +398,48 @@ const task = new tasks.BedrockInvokeModel(this, 'Prompt Model', {
     names: sfn.JsonPath.stringAt('$.Body.results[0].outputText'),
   },
 });
+
+```
+### Using Input Path for S3 URI
+
+Provide S3 URI as an input or output path to invoke a model
+
+To specify the S3 URI as JSON path to your input or output fields, use props `s3InputUri` and `s3OutputUri` under BedrockInvokeModelProps and set 
+feature flag `@aws-cdk/aws-stepfunctions-tasks:useNewS3UriParametersForBedrockInvokeModelTask` to true.
+
+
+If this flag is not enabled, the code will populate the S3Uri using `InputPath` and `OutputPath` fields, which is not recommended.
+
+```ts
+
+import * as bedrock from 'aws-cdk-lib/aws-bedrock';
+
+const model = bedrock.FoundationModel.fromFoundationModelId(
+  this,
+  'Model',
+  bedrock.FoundationModelIdentifier.AMAZON_TITAN_TEXT_G1_EXPRESS_V1,
+);
+
+const task = new tasks.BedrockInvokeModel(this, 'Prompt Model', {
+  model,
+  input : { s3InputUri: sfn.JsonPath.stringAt('$.prompt') },
+  output: { s3OutputUri: sfn.JsonPath.stringAt('$.prompt') },
+});
+
 ```
+
 ### Using Input Path
 
 Provide S3 URI as an input or output path to invoke a model
 
+Currently, input and output Path provided in the BedrockInvokeModelProps input is defined as S3URI field under task definition of state machine.
+To modify the existing behaviour, set `@aws-cdk/aws-stepfunctions-tasks:useNewS3UriParametersForBedrockInvokeModelTask` to true. 
+
+If this feature flag is enabled, S3URI fields will be generated from other Props(`s3InputUri` and `s3OutputUri`), and the given inputPath, OutputPath will be rendered as 
+it is in the JSON task definition.
+
+If the feature flag is set to `false`, the behavior will be to populate the S3Uri using the `InputPath` and `OutputPath` fields, which is not recommended.
+
 ```ts
 
 import * as bedrock from 'aws-cdk-lib/aws-bedrock';