Show region when starting sandbox

[ykethan]

Environment information

System:
  OS: macOS 15.2
  CPU: (8) arm64 Apple M1
  Memory: 251.27 MB / 16.00 GB
  Shell: /bin/zsh
Binaries:
  Node: 20.18.1 - ~/.nvm/versions/node/v20.18.1/bin/node
  Yarn: 1.22.22 - /opt/homebrew/bin/yarn
  npm: 10.8.2 - ~/.nvm/versions/node/v20.18.1/bin/npm
  pnpm: 9.15.2 - ~/Library/pnpm/pnpm
NPM Packages:
  @aws-amplify/auth-construct: 1.6.0
  @aws-amplify/backend: 1.14.0
  @aws-amplify/backend-auth: 1.5.0
  @aws-amplify/backend-cli: 1.4.8
  @aws-amplify/backend-data: 1.4.0
  @aws-amplify/backend-deployer: 1.1.15
  @aws-amplify/backend-function: 1.12.1
  @aws-amplify/backend-output-schemas: 1.4.0
  @aws-amplify/backend-output-storage: 1.1.4
  @aws-amplify/backend-secret: 1.1.5
  @aws-amplify/backend-storage: 1.2.4
  @aws-amplify/cli-core: 1.2.3
  @aws-amplify/client-config: 1.5.5
  @aws-amplify/deployed-backend-client: 1.5.0
  @aws-amplify/form-generator: 1.0.3
  @aws-amplify/model-generator: 1.0.12
  @aws-amplify/platform-core: 1.6.0
  @aws-amplify/plugin-types: 1.8.0
  @aws-amplify/sandbox: 1.2.10
  @aws-amplify/schema-generator: 1.2.7
  aws-amplify: 6.12.1
  aws-cdk: 2.176.0
  aws-cdk-lib: 2.176.0
  typescript: 5.7.3
No AWS environment variables
No CDK environment variables

Describe the feature

Displaying the AWS Region at the start of the sandbox session could help users understand which Region their resources are being deployed to.

Use case

displaying the region at the start could help prevent any accidental resource creation or unexpected errors when referencing resources