[FEEDBACK REQUEST] Node.js 26 preview

Today, we have published the preview AWS Lambda Node.js 26 runtime. You can use it to build and deploy Node.js 26 Lambda functions in **both deployment formats**:

- **Managed runtime (ZIP):** select the `nodejs26.x` runtime when deploying your function code as a `.zip` archive.
- **Container image (OCI):** build and deploy your function using the preview base image `public.ecr.aws/lambda/nodejs:26-preview`.

⚠️ **Public preview - not for production use.** Preview runtimes are provided for feedback and testing only, and should not be used for production workloads. They are not covered by AWS Technical Support and are not eligible for the Lambda SLA. The purpose of preview runtimes is to gather feedback prior to General Availability, while breaking changes are still possible. These runtimes and images may be modified or discontinued without notice.

Please share any feedback below! Thank you!

The issue names no source files, tests, or implementation entry point; it only announces the Node.js 26 Lambda preview and requests feedback. Start by identifying the runtime support area in this repository and clarify what change or test result is expected, since the issue provides no completion criterion.

索引モデルが issue の本文から書いたものです。