the docs are already in the readme, just don't show up in the list

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… their application (#798)

Allows users to run `cdk flags --safe` to set all unconfigured feature
flags to their recommended states without changing their CloudFormation
template.

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---------

Co-authored-by: Rico Huijbers <rix0rrr@gmail.com>

…rmationRequest interface (#904)

This PR standardizes user confirmation flows across the CDK CLI by
migrating from ad-hoc `promptly.confirm` usage to the structured
`ConfirmationRequest` interface.

These are the changes as suggested here:
#826 (review)

## Changes

- **Convert CDK_TOOLKIT_I8910**: Changed from `DataRequest` to
`ConfirmationRequest` for refactor confirmation
- **Standardize destroy flow**: Replace `promptly.confirm` with
`IO.CDK_TOOLKIT_I7010` message
- **Standardize deploy flow**: Update `askUserConfirmation` to use
`ActionLessRequest<ConfirmationRequest>` pattern
- **Clean up test infrastructure**: Remove deprecated `markTesting`
function and `TESTING` variable
- **Update tests**: Replace `promptly` mocks with `requestSpy` for
consistency

## Benefits

- Consistent user interaction patterns across all CLI commands
- Better testability through standardized mocking
- Improved error handling and TTY detection through the IO system
- Cleaner separation of concerns between UI logic and business logic

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Stop releasing the deprecated `@aws-cdk/cli-lib-alpha` package. This
change removes the package from the code base and integ tests. If we
ever need to release it again, we can revert this PR.

I tried to just disable releasing, but then integ tests fail and I think
removing it all in one PR is just easier if we need to go back to it.

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This PR makes the toolkit-lib engine the default for integ-runner,
replacing the previous cli-wrapper engine.

## Changes

- **Default engine switch**:  is now the default engine instead of 
- **Deprecation path**: Added unstable flag to temporarily revert to the
old engine
- **User guidance**: Added helpful error messages and deprecation
warnings to guide users through the transition
- **Test updates**: Updated test suite to reflect the new default engine

## Migration Path

Users experiencing issues with the new default engine can temporarily
revert using:
```
--unstable=deprecated-cli-engine
```

The old engine is scheduled for removal in January 2026.

## Error Handling

When errors occur with the new engine, users receive guidance on how to
report issues and temporarily revert if needed.

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… command (#909)

Fixes #902 

The path to the template Id had been changed by CloudFormation so
migrate.json was not being generated correctly.

Old format:
```
Metadata:
  TemplateId: <arn>
```
New format:
```
Metadata:
  AWSToolsMetrics:
    IaC_Generator: <arn>
```
We do not have a test that would have caught this because the resource
scan can take such a long time that it was causing errors in our tests
when it did exist.

Adding a new test for this is something we should look into but it will
likely require a new test account that is empty except for test
resources so that the test will run fast enough.

I tested this change manually and we now have all the data we need in
migrate.json again (edited to remove all actual identifying
information):
```
{
  "//": "This file is generated by cdk migrate. It will be automatically deleted after the first successful deployment of this app to the environment of the original resources.",
  "Source": "arn:aws:cloudformation:ap-southeast-1:xxxxxxxxx:generatedTemplate/xxxxxxxx",
  "Resources": [
    {
      "ResourceType": "AWS::SQS::Queue",
      "LogicalResourceId": "SQSQueueSimpleStackBarapsoutheast1b",
      "ResourceIdentifier": {
        "QueueUrl": "https://sqs.ap-southeast-1.amazonaws.com/xxxxxxxx/SimpleStack-Bar-ap-southeast-1b"
      }
    },
    {
      "ResourceType": "AWS::SQS::Queue",
      "LogicalResourceId": "SQSQueueCdkfromcfne2etestSimpleStackgolangBarapsoutheast1b",
      "ResourceIdentifier": {
        "QueueUrl": "https://sqs.ap-southeast-1.amazonaws.com/xxxxxxxxx/cdk-from-cfn-e2e-test-SimpleStack-golang-Bar-ap-southeast-1b"
      }
    }
  ]
}
```

and the diff shows:
```
new-app-test % cdk diff
Stack new-app-test
Parameters and rules created during migration do not affect resource configuration.
Parameters
[+] Parameter BootstrapVersion BootstrapVersion: {"Type":"AWS::SSM::Parameter::Value<String>","Default":"/cdk-bootstrap/hnb659fds/version","Description":"Version of the CDK Bootstrap resources in this environment, automatically retrieved from SSM Parameter Store. [cdk:skip]"}

Resources
[←] AWS::SQS::Queue SQSQueueCdkfromcfne2etestSimpleStackgolangBarapsoutheast1b SQSQueueCdkfromcfne2etestSimpleStackgolangBarapsoutheast1b import
[←] AWS::SQS::Queue SQSQueueSimpleStackBarapsoutheast1b SQSQueueSimpleStackBarapsoutheast1b import



✨  Number of stacks with differences: 1
```
with the deployment logs:
```
new-app-test % cdk deploy

✨  Synthesis time: 4.3s

new-app-test: creating stack for resource migration...
new-app-test: importing resources into stack...
new-app-test: creating CloudFormation changeset...

 ✅  new-app-test
'
✨  Resource migration time: 53.54s
'
new-app-test: applying CDKMetadata and Outputs to stack (if applicable)...
new-app-test: start: Building new-app-test Template
new-app-test: success: Built new-app-test Template
new-app-test: start: Publishing new-app-test Template (current_account-ap-southeast-1-dcf01c72)
new-app-test: success: Published new-app-test Template (current_account-ap-southeast-1-dcf01c72)
new-app-test: deploying... [1/1]

 ✅  new-app-test (no changes)

✨  Deployment time: 1.41s

Stack ARN:
arn:aws:cloudformation:ap-southeast-1:xxxxxxxxx:stack/new-app-test/xxxxxxxx
```
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…819)

Updated `cdk init` command to auto-detect language for single-language
custom templates that are pulled from filesystem using `--from-path` so
users do not need to specify `--language` in this case.

Fixes #

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---------

Signed-off-by: github-actions <github-actions@github.com>
Co-authored-by: Ian Hou <45278651+iankhou@users.noreply.github.com>
Co-authored-by: AWS CDK Automation <43080478+aws-cdk-automation@users.noreply.github.com>
Co-authored-by: github-actions <github-actions@github.com>
Co-authored-by: Eli Polonsky <Eli.polonsky@gmail.com>
Co-authored-by: Otavio Macedo <288203+otaviomacedo@users.noreply.github.com>
Co-authored-by: Pahud Hsieh <pahudnet@gmail.com>
Co-authored-by: Momo Kornher <mail@moritzkornher.de>
Co-authored-by: Momo Kornher <kornherm@amazon.co.uk>
Co-authored-by: Rico Hermans <rix0rrr@gmail.com>
Co-authored-by: Dhyan Gandhi <gandhidhyan@gmail.com>
Co-authored-by: Dhyan Gandhi <gandhya@amazon.com>
Co-authored-by: Kaizen Conroy <36202692+kaizencc@users.noreply.github.com>
Co-authored-by: vivian12300 <80646164+vivian12300@users.noreply.github.com>