npm ci

maybe a `npm ci` could be more suited here: https://docs.npmjs.com/cli/v9/commands/npm-ci ?

https://github.com/github/codespaces-preact/blob/782235cc78702dc2a46a6906979356b51ac269d5/.devcontainer/devcontainer.json#L7

Start at .devcontainer/devcontainer.json line 7 and compare the dependency-install command with the linked npm ci documentation. Verify that the development container still builds successfully and installs dependencies as expected; done means the command is updated and the container setup works.

索引モデルが issue の本文から書いたものです。