help: tenant_key_missing

What it means: A tenant_key argument was required for this call (no Authorization header was sent on this connection) and none was given, or it wasn't a string.

Likely cause: Usually a client that reconnects without carrying the bearer header forward, falling back to the tenant_key argument form and forgetting to pass it.

Fix: Pass tenant_key: "<the key signup returned>" as a call argument, or attach Authorization: Bearer <key> to the connection instead.

See also: docs/agent-quickstart.md#quickstart-for-agents