Patchwork Harness v0.4.2

Added

• On-request models. A new catalog flag, on_request: true, keeps a model for the rare job where you name it: ask -m, --lane-model, review -m, or a role list you edit. The planner is never offered it, and fallbacks never pick it.
• Claude Haiku 4.5 (claude-haiku-4-5) is back in the catalog as the first on-request model, verified by a real call on 15 Oct. Haiku 5.5 is ten times cheaper for routine work, so nothing routes to 4.5 on its own.

Fixed

• models cut every verification date to "verified …". The column now shows the date in full, and on-request models are marked.