v1 API inventory

• Public consumers: 200 organizations.
• Replacement: /v2/orders, available in production but not yet announced.
• Current v1 traffic: 48,000 requests/day from 173 active API keys.
• Largest consumer contract requires 90 days' notice for breaking changes.
• Existing telemetry records API key, route, status, and response latency.
• Support can contact 188 consumers directly; 12 use reseller-managed accounts.
• v1 currently has no response deprecation headers or migration guide.