CLI: Review Tasks

R is --repo OWNER/NAME, or another scope. Only approved tasks are evaluated.

Command	Does
`tasks R [--state S]`	`S` is `needs_review`, `accepted`, `rejected`, `in_progress`, `failed`, or `cancelled`
`task show RUN_ID TASK_ID R`	A task, its review, cost, and revisions
`task pull RUN_ID TASK_ID [DIR] R`	Download its files: instruction, Dockerfile, patches, scripts, `workspace/`
`task revise RUN_ID TASK_ID R (--feedback TEXT \| --feedback-file F) [--draft DIR]`	Revise from feedback; `--draft` sends your edited files too
`task steer RUN_ID TASK_ID R (--feedback TEXT \| --feedback-file F)`	A note to a task still generating; its author reads it at its next turn
`task steering RUN_ID TASK_ID R`	The notes sent, and which turn received each
`task approve\|reject RUN_ID TASK_ID R [--note TEXT]`	Review it
`task unreview\|cancel\|delete RUN_ID TASK_ID R`	Clear the review, stop generation, or delete

task revise takes the same generation options as generate.