Power-user features
- New bulk-order page with CSV upload, validation preview and one-click "add all" for B2B labs.
- Wishlist now has a Share button (read-only 90-day token) plus CSV export and import.
- Cart can be saved as a named template — restore from your account home in one click.
- Floating Feedback button on every public page; structured bug-report and feature-request forms on help.
- Drag-drop reorder of stat tiles on the account dashboard. Keyboard alt: focus a tile and press Alt + ←/→.
- Account settings now persist currency (EUR/USD/GBP/CHF), units (mg/μg/mmol) and a beta-features opt-in.
- Per-user API tokens (placeholder) for future automation endpoints.
- Public roadmap + changelog pages.