* Add metrics collection and terminal performance tests
* feat: add loop, schedule, and chat commands with slash-namespaced RPC
Introduce three new server-side features with CLI command groups:
- `paseo loop` — iterative agent execution with verify-check/verify-prompt
- `paseo schedule` — recurring tasks on interval or cron cadence
- `paseo chat` — chat rooms for agent-to-agent coordination
All features use new slash-namespaced RPC methods (e.g. `loop/run`,
`schedule/create`, `chat/post`) instead of flat message types, backed
by file-based persistence and wired through the existing WebSocket
session dispatch.
* test: stabilize loop schedule chat rollout
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