Release: v0.26.0

Removed

• /recipe-task. Use /recipe-implement for implementation work, or /recipe-diagnose for investigation.
• rule-advisor agent and the task-analyzer skill. These picked which rules applied to a task. The agents that needed those rules already load them directly, so the selection step added a round trip without changing what ran.

Changed

• /recipe-diagnose no longer stops to ask about the problem type or what changed before it starts investigating. It goes straight to investigation and reports what it could not resolve.