Harnass Engineer Plan

Read documents/router.yaml.

If harnass-os/... is missing, stay in read-only draft mode: inspect the repo, align with the user, summarize the draft in chat, and direct the repo through harnass-engineer-start before writing plan files.

CRITICAL EXECUTION RULE: After the user approves the plan, you MUST immediately begin executing tasks. Do NOT output a summary and stop. Do NOT ask "should I proceed?". Do NOT wait. The plan approval IS the signal to start. Read Implement.md, pick the first pending task, and execute it now.