homaroma/docs/website-route-parity-audit.md

Website Route Parity Audit

Scope: read-only comparison of apps/spa/src/App.tsx against apps/website/src/app/**.

Route Matrix

SPA route	Website route	Status	Notes
/	/	upgraded-m1	Server-rendered from the CMS page endpoint internally.
/shop	/shop	upgraded-m1	Server-renders product/category content, preserves coupon handoff, and consumes shop-layout CMS sections around the product grid.
/category/:id	/category/[id]	upgraded-m1	Server-renders category/product content with dynamic metadata and consumes category-layout CMS sections around the product grid.
/products/:id	/products/[id]	upgraded-m1	Server-renders product details and metadata, and consumes product-detail-layout CMS sections around the product content.
/coupons	/coupons	upgraded-m1	Uses internal links, consumes coupons-layout CMS sections, and exposes coupon API error state.
/checkout	/checkout	partial-m1	Client checkout creates pending orders through POST /orders, supports settings shipping fee, promotions, coupon validation, saved addresses, points, local order history, and checkout-layout CMS sections. Payment/slip upload remains deferred to /order/[id] follow-up.
/order/:id	/order/[id]	partial-m1	Server-renders order status, item summary, tracking number, and order-success-layout CMS sections. Payment/upload actions are intentionally deferred.
/track	/track	upgraded-m1	Replaces redirect with order tracking form, POST /orders/track, device order history, and track-order-layout CMS sections.
/wishlist	/wishlist	upgraded-m1	Client wishlist store now matches SPA storage key, supports add/remove from product cards, and consumes wishlist-layout CMS sections.
/search	/search	upgraded-m1	Server-renders search results, guards repeated query params, and consumes search-layout CMS sections around the search UI.
/scent-guide	/scent-guide	upgraded-m1	Server-renders article index, consumes scent-guide-layout CMS sections, and exposes article API error state.
/article/:slug	/article/[slug]	exists-needs-upgrade	Exists with dynamic metadata and notFound; needs HTML sanitization review.
/profile	/profile	partial-m1	Client profile dashboard uses SPA-compatible auth storage, order history, address CRUD, contact settings, and profile-layout CMS sections. LIFF initialization for website remains a follow-up dependency.
/:slug	/[slug]	upgraded-m1	Server-renders published single-segment CMS pages with reserved route collision guard.
*	default Next behavior	missing	No custom not-found.tsx currently exists.

Top Website-Only Risks

Risk	Severity	Impact
Missing legacy classes/design tokens	High	M1 visual cleanup removed night-*, cyan-glow, and glass from website source classes; remaining visual risk is manual UI verification across breakpoints.
Hardcoded production URLs	Medium	Initial coupon page issue is fixed; continue checking remaining legacy pages during Phase 6.
Silent API fallbacks	High	M1 SEO routes now expose explicit error states in key product listing flows; remaining legacy pages still need review.
Client-only SEO weakness	High	M1 fixed /shop, /category/[id], /search, /track, /wishlist, /profile, /checkout, and read-only /order/[id]; remaining auth/payment flows are still later-phase work.
Client-side pricing trust	High	Checkout follows the SPA contract, but backend still trusts client-provided subtotal, discounts, points, shipping, and total. Server-side pricing validation should be owned by backend before production-grade payment rollout.
Image optimization debt	Low	M1 intentionally keeps <img> until image hosting/CDN policy is finalized; next/image should be revisited after images.remotePatterns can be configured safely.

Recommended Order

1. Stabilize website-local data helpers.
2. Add website CMS renderer and upgrade /.
3. Upgrade /products/[id].
4. Convert /shop and /category/[id] to SSR shell plus client islands.
5. Add CMS custom /:slug support with explicit collision rules.
6. Add missing commerce/client routes after SEO pages are stable.