Add the `paseo agent inspect <id>` command that shows detailed
information about an agent:
- Id, name, provider, model, status, mode, cwd
- Creation timestamp
- Token usage (input, output, cached, cost)
- Capabilities (streaming, persistence, dynamic modes, MCP servers)
- Available modes
- Pending permissions count
- Parent agent ID
The default output is YAML-like key-value pairs. Use `--format json`
or `--format yaml` for machine-readable output with the full agent
snapshot.
Supports agent ID prefix matching.