v0.6.0 — Phase 3 Onboarding UX Redesign

Highlights

• Replaced /onboarding redirect behavior with a dedicated onboarding hub page.
• Added two onboarding paths: guided wizard (/onboarding/supplier-flow) and bulk upload (/onboarding/bulk-upload).

UX and Theming

• Migrated onboarding supplier flow visuals from hardcoded/light styles to shared --re-* design tokens.
• Updated bulk upload UI to tokenized dark styling and removed legacy slate-*/emerald-* class usage.

Navigation and Flow

• Added a dedicated onboarding shell (frontend/src/app/onboarding/layout.tsx) with consistent top navigation.
• Hid marketing header/footer on onboarding routes for focused onboarding UX.
• Added cross-links across marketing, onboarding, and dashboard, including a supplier completion CTA to /dashboard.

Validation

• Verified with npm run lint and npm run build.