hermes - 💡(How to fix) Fix [Bug]: unblock_task bypasses parent-dependency gate

Summary

unblock_task bypasses the parent-dependency gate by jumping directly from blocked to ready, without checking whether all parents have completed. This is the only path that can land a task in ready without passing through recompute_ready's parent-status check.

Steps to Reproduce

1. Create parent task A (assignee=worker)
2. Create child task B with parents=[A]; B starts as todo
3. Manually set B to ready, claim it, then block it (block_task)
4. Unblock B (unblock_task) — B goes to ready immediately, even though parent A is still in todo
5. The dispatcher can now claim B and run it before A is done

Expected Behavior

unblock_task should route through recompute_ready so parent dependencies are re-evaluated after the block is lifted. If parents aren't all done, the task should stay in todo.

Actual Behavior

unblock_task sets status = 'ready' unconditionally — no dependency check.