[Prototype/Demo] Query app logs with GraphQL

[rmcnews]

WHY are these changes introduced?

Demo prototype for querying historical app logs. Not intended to merge.

WHAT is this pull request doing?

Accept GraphQL inline, from files, or stdin, with JSON variables and full JSON responses. Keep app logs schema for introspection.

How to manually test your changes?

shopify app logs --query '{
  app(key: "APP_CLIENT_ID") {
    logs(input: {
      startTime: "2026-10-01T15:00:00Z"
      endTime: "2026-10-01T16:00:00Z"
      types: [WEBHOOK_DELIVERY]
      limit: 10
    }) {
      events {
        timestamp
        shopDomain
        webhookDelivery { topic statusCode }
      }
      limitReached
    }
  }
}'

Co-authored by AI (GPT-6)