Chat commands

Command	Flags	Purpose
`nasiko chat [url] [message]`	`-a/--agent`, `--tui`, `--resume`, `--session-id`	A2A chat. Omit target → orchestrator. A lone argument with whitespace is the message
`nasiko sessions`	`--endpoint`, `--cursor`, `--limit`	List (includes coding-agent sessions)
`nasiko create-session`	`--agent`	Create. Omit `--agent` for orchestrator
`nasiko history <session_id>`		Messages
`nasiko delete-session <session_id>`	`-y/--yes`	Delete

HITL pauses prompt inline in chat and in maf workflow run --wait.