Add-on image uploads and cleaner booking merchandising

What changed

Admin add-on management now supports direct image uploads for both add-ons and their choices, so tenants no longer need to paste thumbnail URLs by hand.

On the public booking form, add-ons now support larger media cards when images exist, while mixed image and no-image states stay visually aligned. We also tightened booking summary contrast and localized tenant landing card layouts.

We also cleaned up a booking-form merge regression so service-plan-aware booking, wallet lookup behavior, and the latest public card layout updates remain consistent in production.

Why this matters

• Less admin friction when merchandising extras like teleprompters, clips, or equipment packs.
• Stronger add-on presentation in booking without turning the flow into a heavy catalog.
• Cleaner French and other longer localized CTA and price blocks on tenant landing pages.
• Better readability in booking summaries for tenants using lighter brand colors.
• Clearer upload guidance and inline errors for oversized or unsupported logo, space, gallery, and add-on images.
• Keeps recent booking and service-plan improvements live together instead of forcing a tradeoff between newer public UI polish and packaged-offer booking behavior.