complete reviews system (phases 4-6)

- review display: photos with lightbox, verified badge, pagination
- admin moderation: pending/approved/rejected tabs, bulk actions, nav badge
- SEO: JSON-LD AggregateRating and Review markup on product pages
- automation: review request emails 7 days after delivery (Oban worker)
- rating cache: avg/count fields on products, updated on approval
- fix file size validation in media test (10MB limit)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

README.md

@@ -8,7 +8,8 @@ A customisable e-commerce storefront for print-on-demand sellers, built with Pho
 Complete storefront with all the pages you need:
 - **Home** — hero banner, category navigation, featured products, newsletter
 - **Products** — grid layout with hover effects, sorting, filtering by collection
-- **Product detail** — image gallery with per-colour filtering, variant selector, related products
+- **Product detail** — image gallery with per-colour filtering, variant selector, related products, reviews
+- **Reviews** — verified purchase reviews with photos, admin moderation, JSON-LD markup
 - **Cart** — drawer + full page, quantity controls, shipping estimate, cross-tab sync
 - **Checkout** — Stripe-hosted checkout with shipping costs, order confirmation
 - **Custom pages** — CMS pages at any URL with 26 block types
@@ -34,7 +35,7 @@ Complete storefront with all the pages you need:
 - Image optimisation pipeline (AVIF/WebP/JPEG responsive variants via Oban)
 - ETS caching for CSS, pages, redirects, favicons
 - 99-100 PageSpeed mobile, no-JS support across all key flows
-- 1679+ tests, CI with credo + dialyzer
+- 1851+ tests, CI with credo + dialyzer
 
 ## Getting started