Both vault-step buttons now read "continue" -- they collect input and advance
to the device step, where the SW actually performs create_vault/attach_vault
(with its own busy spinner). The old "create vault" / "verify and attach"
labels implied the action happened on that click, which is no longer true.
Drops the unused export on vaultConfig().
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Hits the Task 7.1 <=500 LOC gate for setup.ts by extracting the SetupStep
registry, the WizardState singleton, clearWizardState and finishSetup into a
sibling setup-steps.ts; setup.ts is now a thin shell (progress track + render
loop + boot + re-exports). The import is one-directional (setup -> setup-steps),
no cycle. Also restores the non-extension copy-vault-config-JSON escape hatch on
the done step (per product decision) while keeping the redundant register-device
button dropped (the SW handler registers the device).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
