fix: production-navigable Antracite/Gold UI + real V1 API routes

[LVT-ENG]

Summary

This PR makes the TryOnYou web app fully navigable, visually production-ready with an Antracite/Gold Vogue-tech theme, and wires the missing V1 API routes to real backend logic.

Problems Fixed

1. App was not scrollable — overflow: hidden on html, body, and #root prevented any scrolling. The React root was position: fixed with pointer-events: none, making buttons unclickable in many contexts.

2. z-index layering blocked React UI — The MediaPipe canvas shell at z-index 1 and the legacy nav-bottom shell overlapped the React app. Users couldn't interact with the actual SPA.

3. Missing API routes — App.tsx and julesClient.ts called /api/v1/checkout/perfect-selection, /api/v1/leads, and /api/v1/mirror/snap, but none of these routes existed in api/index.py. The "Mi Selección Perfecta" button had no backend to connect to.

4. Light theme didn't match brand — The inline gradient was #F5F5DC → #FFFFFF → #D3B26A (beige/white), not the Antracite/Gold identity specified in CSS variables.

Changes

Layout & Scrollability (index.html, src/index.css, src/App.css)

• Removed overflow: hidden from html/body/#root
• Changed #root from position: fixed; pointer-events: none to position: relative; z-index: 10
• Dimmed MediaPipe canvas to opacity: 0.15 (atmospheric background, not blocking)
• Hidden legacy shell nav-bottom/pay-bar (React handles all CTAs)

Antracite/Gold Theme (src/App.tsx, src/App.css, src/index.css)

• Dark anthracite background (#141619 → #0c0d10) with gold #D4AF37 accents
• Cinzel serif + Inter sans-serif typography (Google Fonts)
• Glass-morphism buttons with gold glow and backdrop-filter
• BALMAIN / DIOR / PRADA / CHANEL / YSL brand rotation in hero
• All inline styles updated to use anthracite/gold palette

V1 API Routes (api/index.py)

• /api/v1/checkout/perfect-selection — wired to shopify_bridge.resolve_shopify_checkout_url and amazon_bridge.resolve_amazon_checkout_url for real cart URLs
• /api/v1/leads — persists lead intents through the bunker orchestrator
• /api/v1/mirror/snap — integrates inventory_engine.inventory_match_payload for biometric garment matching, returns garment reference + Jules emotional message
• Enhanced /api/health to return ok: true, service name, and SIREN/patent — fixes PAU status display in frontend

Verification

• TypeScript typecheck (tsc --noEmit): 0 errors
• Production build (vite build): 0 warnings, 0 errors
• Manual testing: full page scrollable, all buttons interactive, locale switcher works (FR/EN/ES)

Screenshots

Hero Section — Antracite/Gold theme with brand rotation:
Hero section with TRYONYOU branding and gold accents

Pricing Cards and Video Sections:
Pricing grid showing 12500€ and 109900€ packs

Ofrenda Overlay with Action Buttons:
Lower section with Balmain, payment, reservation buttons

Video Walkthrough

Full navigability demo including scrolling, locale switching (FR → EN → ES → FR), and all UI sections:

tryonyou_full_walkthrough_antracite_gold.mp4

_{To show artifacts inline, enable in settings.}

Slack Thread

  

[vercel]

Deployment failed with the following error:

Header at index 0 has invalid `source` pattern "/docs/(.*\.(pdf|csv|md|zip))".

Learn More: https://vercel.link/invalid-route-source-pattern

[LVT-ENG]

Yes