Implements the architect-controlled workflow: implementers submit work
for review, only the architect closes tasks.
- CLI: `agenthub task review <id>` (implementer submits → status review)
and `agenthub task reopen <id>` (architect re-triggers → status open).
Server already supported both statuses; now exposed on local + --server
paths, with remoteClient.reviewTask/reopenTask.
- templates: AGENTS.md + role guides rewritten so agents self-drive the
CLI on open (hello → claim → implement → task review → wait), with the
hard rule that ONLY the architect runs `task done`. Implementer guides
(codex/kimi) never call done; architect guide documents done/reopen.
- tests: review/reopen SSE events + formatEvent "Task review"/"Task
reopened" lines. 113/113 green.
Bump 0.2.0 -> 0.2.1.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>