Prototype GraphQL log-query access

[rmcnews]

WHY are these changes introduced?

Prototyping CLI log-query access through Dev Platform GraphQL. Follow-up to #8549; not for release.

WHAT is this pull request doing?

The hidden local-only app logs query command calls https://dev.shop.dev/api/unstable/graphql, sends app(key:) { logs(input:) }, prints the logs result, and surfaces GraphQL errors. Uses the app client ID without an organization flag. Keeps existing authentication helpers and server-owned query limits.

How to manually test your changes?

With a compatible local prototype API:

SHOPIFY_APP_LOG_QUERY_PROTOTYPE=1 SHOPIFY_SERVICE_ENV=local \
  node packages/cli/bin/dev.js app logs query \
  --client-id YOUR_APP_KEY --minutes 15 --limit 3

Co-authored by AI (GPT-5)