v1.42.0

• Flip the built-in role defaults to alternate vendors at every handoff: claude:fable drafts
  the plan, codex:sol reviews it, codex:sol implements on the stored review thread, and
  claude:fable gates the diff — for /stereo:plan, /stereo:implement, and /stereo:quick
  alike (quick's scope gate stays inline)
• The default plan review now stores each parsed round durably with a resumable plan-review
  thread, so implementation resumes the approval context instead of starting fresh; one flag
  (--plan-reviewer claude:fable) restores the faster all-Claude plan loop
• Update every consequence claim to the new mechanics — budget split, thread resumption, escape
  hatches, the strategy rationale, the marketing site's step cards, schematic, configurator, and
  model matrix — and drop effort annotations on defaults wherever the effort is just the model's
  pair default