v0.3.3

Changed

• Skill: "a clean boundary is a checkpoint, not a stop." Agents were treating natural
  pause points (tests green, a commit landed) as stopping points even with healthy budget
  and work remaining. The skill now says to continue through, and to stop ONLY when:
  nothing valuable is left, a genuine blocker needs the user, or budget is truly dry
  (≲2%). The worth-it test brakes both ways — no premature stop, no runaway. Completes the
  anti-timidity / descent-profile arc. (Wording eval-gated per ADR-9; validating in soak.)

Docs

• Product-boundary docs: the self-evolving harness is Keyoku's, not headroom's
  (EVOLVING-HARNESS.md); headroom is the awareness/sensor layer and friction feed. The
  suggest miner was prototyped and deferred (design kept in SUGGEST.md) — thinness
  applied to ourselves.