Integrate AgentKit Host

Wire an always-on host so it can act as a named user through AgentKit. Then stop.

A host is a long-lived agent process (OpenClaw or Hermes). It is not this git repo.

Guardrails

• MUST wait for dashboard credential values. MUST NOT invent them.
• MUST pass the exact dashboard Connection Name. Never invent a slug.
• MUST put only Scalekit client credentials on the host. Provider tokens stay in Scalekit.
• MUST confirm a tool name with tool_exec.py --get-tool or the connector's page in https://docs.scalekit.com/agentkit/connectors.md before calling it.

Gotchas