Prototype authenticated GraphQL execution

[rmcnews]

WHY are these changes introduced?

Prototype authenticated GraphQL execution in the CLI. Not for release.

WHAT is this pull request doing?

Replaces the prototype app logs query flags with hidden, local-only dev execute: pass a GraphQL document inline, from a file, or via stdin, with optional variables and operation name. Reuses authentication helpers and prints the complete JSON response, preserving errors and partial data with a nonzero exit status. Existing app logs tailing is unchanged.

How to manually test your changes?

With a compatible local prototype API:

export SHOPIFY_APP_LOG_QUERY_PROTOTYPE=1 SHOPIFY_SERVICE_ENV=local
node packages/cli/bin/dev.js dev execute --query '{ __schema { queryType { name } } }'
node packages/cli/bin/dev.js dev execute --query-file query.graphql --variable-file variables.json

Co-authored by AI (GPT-5)