Insert Training at step 4 in WIZARD_STEPS (7→8), STEP_LABELS, and
STEP_ROUTES. Bump Identity→5, Inference→6, Search→7, Integrations→8 in
their respective saveStep calls. Cap resumeAt at 8. Await loadStatus()
before loadDbPairs() in FineTuneView onMounted so optedIn is set before
the early-exit guard runs.
Inserts a new optional Training Export step between Resume and Identity
in the setup wizard. Users can opt in to saving cover letters for
fine-tuning dataset export. Consent copy distinguishes local vs. cloud
storage. WIZARD_STEPS bumped to 7; router, and adjacent step
back/next navigation updated accordingly.