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(SP: 1) [Shop] Fix Stripe checkout success redirect (remove duplicate locale /uk/uk)#186

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ViktorSvertoka merged 3 commits into
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lso/feat/shop
Jan 23, 2026
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(SP: 1) [Shop] Fix Stripe checkout success redirect (remove duplicate locale /uk/uk)#186
ViktorSvertoka merged 3 commits into
developfrom
lso/feat/shop

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@liudmylasovetovs
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@liudmylasovetovs liudmylasovetovs commented Jan 22, 2026

Description

This PR fixes a checkout redirect issue where users were sent to a 404 page after confirming payment. The root cause was locale being prefixed twice in success/error routes (e.g. /uk/uk/...) due to mixing locale-aware routing (@/i18n/routing) with manually prefixed paths. The change standardizes in-app navigation to use locale-less paths while keeping Stripe return_url as an absolute URL with locale included exactly once.


Related Issue

Issue: #<issue_number>


Changes

  • Standardized shop in-app navigation to use locale-less base paths (/shop/...) with @/i18n/routing handling locale prefixing.
  • Fixed Stripe payment confirmation flow to build return_url with locale exactly once (absolute URL), preventing /uk/uk redirects.
  • Updated checkout/cart/payment links and router pushes to ensure consistent locale handling and eliminate 404 after payment.

Database Changes (if applicable)

  • Schema migration required
  • Seed data updated
  • Breaking changes to existing queries
  • Transaction-safe migration
  • Migration tested locally on Neon

How Has This Been Tested?

  • Tested locally
  • Verified in development environment
  • Checked responsive layout (if UI-related)
  • Tested accessibility (keyboard / screen reader)

Screenshots (if applicable)


Checklist

Before submitting

  • Code has been self-reviewed
  • No TypeScript or console errors
  • Code follows project conventions
  • Scope is limited to this feature/fix
  • No unrelated refactors included
  • English used in code, commits, and docs
  • New dependencies discussed with team
  • Database migration tested locally (if applicable)
  • GitHub Projects card moved to In Review

Reviewers

Summary by CodeRabbit

  • Refactor
    • Updated internal routing logic across shop pages including product browsing and sorting
    • Refined navigation paths in checkout and payment processing flows
    • Improved authentication redirect behavior for account features like order history
    • Enhanced navigation consistency across shop and payment pages

✏️ Tip: You can customize this high-level summary in your review settings.

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Note

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CodeRabbit has detected other AI code review bot(s) in this pull request and will avoid duplicating their findings in the review comments. This may lead to a less comprehensive review.

📝 Walkthrough

Walkthrough

This PR systematically removes locale prefixes from shop-related URLs and introduces locale-handling helper functions for consistent route construction. Changes affect cart, checkout, payment, product, and order pages—replacing direct locale-prefixed strings with utility functions for in-app navigation.

Changes

Cohort / File(s) Summary
Shop Cart & Checkout Pages
frontend/app/[locale]/shop/cart/page.tsx, frontend/app/[locale]/shop/checkout/payment/[orderId]/page.tsx
Removed locale prefix from shopBase, changing URLs from /${locale}/shop to /shop; impacts checkout/navigation path construction
Stripe Payment Routing
frontend/app/[locale]/shop/checkout/payment/StripePaymentClient.tsx
Introduced IN_APP_SHOP_BASE, normalizeLocale, buildInAppPath, and buildStripeReturnUrl helpers; replaced direct URL strings with helper functions for consistent locale-aware routing and Stripe redirects
Shop Listing Pages
frontend/app/[locale]/shop/orders/page.tsx, frontend/app/[locale]/shop/products/page.tsx
Removed locale segment from redirect URLs; login flow now targets /login?next=/shop/orders instead of /{locale}/login?next=/{locale}/shop/orders and product redirects to /shop/products instead of /${locale}/shop/products
Product Sort Component
frontend/components/shop/product-sort.tsx
Replaced locale-aware routing with hardcoded /shop/products base path; imports routing from custom i18n module with developer note against locale prefixing

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Possibly related PRs

Suggested reviewers

  • AM1007
  • ViktorSvertoka

Poem

🐰 Locale prefixes hop away so free,
Shop routes now streamline naturally,
/shop paths bounce with helper cheer,
URLs consistent, crystal clear! ✨

🚥 Pre-merge checks | ✅ 2 | ❌ 1
❌ Failed checks (1 warning)
Check name Status Explanation Resolution
Docstring Coverage ⚠️ Warning Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Write docstrings for the functions missing them to satisfy the coverage threshold.
✅ Passed checks (2 passed)
Check name Status Explanation
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The title clearly and specifically describes the main change: fixing a Stripe checkout redirect issue by removing duplicate locale prefixes, which is directly supported by the PR objectives and file-level changes across the codebase.

✏️ Tip: You can configure your own custom pre-merge checks in the settings.

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const params = useParams<{ locale?: string }>();
const locale = params.locale ?? 'en';
const shopBase = useMemo(() => `/${locale}/shop`, [locale]);
const shopBase = useMemo(() => `/shop`, []);
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P1 Badge Preserve locale in cart checkout navigation

This component still uses useRouter from next/navigation, which does not auto-prefix locales. After this change, shopBase is always /shop, so router.push calls in the checkout flow now navigate to locale-less paths. With localePrefix: 'always', that either redirects to the default locale or 404s, which breaks checkout for non-default locales and can switch users to the wrong language. Use the locale-aware router from @/i18n/routing or re-include the locale in the base path.

Useful? React with 👍 / 👎.

Comment on lines 114 to 117
redirect(
`/${locale}/login?next=${encodeURIComponent(
`/${locale}/shop/orders/${id}`
`/login?next=${encodeURIComponent(
`/shop/orders/${id}`
)}`
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P2 Badge Keep locale when redirecting to login

This redirect now targets /login with next=/shop/orders/... and uses next/navigation’s redirect, so the locale from the current /[locale]/shop page is dropped. With locale prefixing always on, users in non-default locales will be sent to the default locale’s login page and the next target won’t return them to the localized orders page. Use the i18n redirect helper or include the locale in both the login path and the next parameter.

Useful? React with 👍 / 👎.

@ViktorSvertoka ViktorSvertoka merged commit ee4363c into develop Jan 23, 2026
8 checks passed
@ViktorSvertoka ViktorSvertoka deleted the lso/feat/shop branch January 23, 2026 05:30
ViktorSvertoka added a commit that referenced this pull request Jan 25, 2026
* (SP: 1) [Security] Enforce origin posture for shop APIs (admin/checkout same-origin; internal/webhooks non-browser) + docs

* (SP: 1) [DB] Align stripe_events.order_id FK CASCADE across schema and migrations

* feat(i18n): localize quiz anti-cheat, header and blog filters (#175)

* feat(Blog): Adding last published post to the blog and category page, recommended posts, Changing styles to one unified format, Bug fixes

* Update leaderboard-style

* Update leaderboard-style

* teat(Blog): fix of hover on author, fix of the line

* (SP: 3) [Observability] Extend structured logging + correlation IDs across all shop routes; purge console.*; enforce explicit error codes

* (SP: 1) [Admin][Security] Add safe product delete (PRODUCT_IN_USE) + mobile cards UI; tighten env/docs, locale normalization, cache-control, and logging semantics

* fix: npm installing

* (SP: 1) [Admin] Align products list in use checks with DB column names (order_items/inventory_moves)

* fix:Update leaderboard: fixed background

* fix: remove email from CurrentUser type to prevent PII exposure

* refactor: align leaderboard UI with brand style (fixed bg, css vars, podium glow)

* (SP: 1) [Frontend] About Us Page. Fixed game, topics, mobile layout

- Fixed mobile tabs in FeaturesSection (icon-only on mobile)
- Fixed game bugs: collision detection, animation, scoring system
- Added multiple obstacle types with level progression
- Improved game sizing for mobile while preserving desktop
- Updated TopicsSection with local SVG icons and hover borders
- Made DynamicGridBackground static grid opt-in via showStaticGrid prop
- Limited SponsorsWall to display max 10 sponsors
- Optimized CommunitySection button layout for mobile

* refactor: update accent color hover effects to Footer

- Update Footer links to use --accent-primary on hover
- Update ThemeToggle icons to use --accent-primary on hover
- Both components adapt colors to light/dark theme

* refactor: improve accessibility

- Add focus-visible styles for keyboard navigation accessibility

* (SP: 1) [Shop] Fix Stripe checkout success redirect (remove duplicate locale /uk/uk) (#186)

* fix:leaderboard  update leaderboard-style (#187)

* fix:leaderboard update leaderboard-style on mobile (#188)

* fix:leaderboard  update leaderboard-style

* fix:leaderboard update leaderboard-style on mobile

* fix: resolve CodeRabbit issues and conflicts

---------

Co-authored-by: Viktor Svertoka <victor.svertoka@gmail.com>

* (SP: 1) [Frontend] Changing hero headline on shop main page (#190)

* (SP: 1) [Shop] Fix checkout redirect 404 by removing duplicate locale in in-app routes and Stripe return_url

* (SP: 1) [Shop] Fix locale cart page and orderid page

* (SP: 1) [Frontend] Changin hero headline on shop main page

* (SP: 1) [Frontend] Fix styles shop home page, buttons (#191)

* Feature/leaderboard style update (#192)

* (SP: 7) [UI] Quiz UI polish: tabs styling, category accents, color scheme (#181, #193, #194) (#195)

* Sanity (#196)

* feat(Blog):fix for clickable link in post details, fix for author details

* feat(Blog):refactoring after removing author modal

* feat(Blog): fix unified date format

* (SP: 3) [AI] Add AI word helper with Groq integration (#200)

* (SP: 3) [AI] Add AI word helper with Groq integration

- Implement Groq API with Llama 3.1 70B model
- Add text selection detection on Q&A page
- Create floating "Explain" button
- Build draggable modal with 3-language support (uk/en/pl)
- Add localStorage caching for instant repeated lookups
- Implement guest CTA (login/signup)
- Add rate limiting (10 requests/min)
- Auth-gated feature (registered users only)

Components:
- SelectableText: Detects text selection
- FloatingExplainButton: Appears on selection
- AIWordHelper: Main modal with explanations

* (SP: 1) i18n: fix Polish locale and set EN as default

* Sanity (#202)

* feat(Blog):fix for clickable link in post details, fix for author details

* feat(Blog):refactoring after removing author modal

* feat(Blog): fix unified date format

* feat(Blog): Fix for  click-outside-to-close search, recommended posts are limited to 3

* feat(Blog): selectedAuthorData fixed

* feat(Blog): Added description for /blog/[slug] metadata, Added Schema.org JSON‑LD for Article (BlogPosting) and BreadcrumbList , Added <time datetime> tags where blog dates renders

* Sanity (#203)

* feat(Blog):fix for clickable link in post details, fix for author details

* feat(Blog):refactoring after removing author modal

* feat(Blog): fix unified date format

* feat(Blog): Fix for  click-outside-to-close search, recommended posts are limited to 3

* feat(Blog): selectedAuthorData fixed

* feat(Blog): Added description for /blog/[slug] metadata, Added Schema.org JSON‑LD for Article (BlogPosting) and BreadcrumbList , Added <time datetime> tags where blog dates renders

* feat(Blog): fix hover social links, fixed duplication not found search

* (SP: 3) [Frontend] Refactor Header UI and navigation states (#201)

* (SP: 3) [Frontend] Refactor Header UI and navigation states

- Add icon to the language switcher

- Add GitHub icon with stars indicator (frontend only)

- Update logo styles

- Improve touch interaction styles

- Verify correct placement and alignment of all header components

- Make mobile header modal full-screen

- Disable background scroll when mobile menu is open

- Highlight active navigation item

- Update navigation styles:

- Highlight Shop link when user is on Home pages
- Highlight Home link when user is on Shop pages
- Style changes only, no routing or logic changes

* fix CodeRabbit

* update HeaderButton styles

* fix: add accessibility for HeaderButton

* (SP: 3) [Testing] Vitest config + unit + integration tests for quiz module (#204)

* feat(quiz-ui): quiz UI polish - tabs, category accents, color scheme (issues #181, #193, #194)

- Refactor QaTabButton to shared CategoryTabButton component
- Add category accent colors to QuizCard, buttons, progress indicators
- Standardize colors with CSS variables, traffic light timer
- Add DynamicGridBackground to quizzes list page
- Border-only answer feedback, semi-transparent progress styles

* docs: update .gitignore

* fix(quiz): align disqualification threshold with warning banner

Changed violationsCount > 3 to >= 3 in QuizResult points block
to match the warning banner threshold at line 124.

* feat(quiz-testing): add quiz unit tests

- Configure Vitest for quiz module
- Add test factories and setup utilities
- Add quiz-crypto tests (13 tests)
- Add quiz-session tests (12 tests)

* test(quiz): add integration tests for verify-answer API and useAntiCheat hook (#199)

- verify-answer.test.ts: 8 tests for API endpoint
  - Correct/wrong answer verification
  - Validation errors (missing fields, tampered data)
  - Security: rejects modified encrypted answers

- quiz-anticheat.test.ts: 10 tests for useAntiCheat hook
  - Detects copy, paste, context-menu, tab-switch events
  - Respects isActive flag
  - Reset and cleanup functionality

Total quiz tests: 52 (9 setup + 25 unit + 18 integration)

* test(quiz): expand test coverage to 90%+ with hooks, API routes, and UI flow

Add 28 new tests covering:
- useQuizSession hook (6 tests)
- useQuizGuards hook (8 tests)
- guest-quiz storage (5 tests)
- guest-result API route (5 tests)
- quiz-slug API route (3 tests)
- QuizContainer UI flow (1 test)

Coverage: 35% -> 90.94% (quiz scope)
Tests: 52 -> 80

* chore: remove coverage-quiz from git, add to .gitignore

* chore: add coverage-quiz to .gitignore, fix quiz guards test

* Feature/leaderboard style update (#206)

* fix:leaderboard  update leaderboard-style

* fix:leaderboard update leaderboard-style on mobile

* fix: resolve CodeRabbit issues and conflicts

* fix: move row border to first cell to resolve CodeRabbit issue

* fix: move row border to first cell to resolve CodeRabbit issue new

* fix(leaderboard): improve table mobile

* fix(leaderboard): correct malformed shadow class syntax for avatar glow

* test(q&a): add comprehensive qa tests and coverage setup (#208)

* test(q&a): add comprehensive qa tests and coverage setup

* test(q&a): align mocks and reset in qa tests

* (SP: 1) [Frontend] Remove Contacts References (#211)

* test(q&a): add comprehensive qa tests and coverage setup

* test(q&a): align mocks and reset in qa tests

* chore(nav): remove contacts page references

* Sanity (#209)

* feat(Blog):fix for clickable link in post details, fix for author details

* feat(Blog):refactoring after removing author modal

* feat(Blog): fix unified date format

* feat(Blog): Fix for  click-outside-to-close search, recommended posts are limited to 3

* feat(Blog): selectedAuthorData fixed

* feat(Blog): Added description for /blog/[slug] metadata, Added Schema.org JSON‑LD for Article (BlogPosting) and BreadcrumbList , Added <time datetime> tags where blog dates renders

* feat(Blog): fix hover social links, fixed duplication not found search

* feat(Blog): Added: breadcrumbs to the post details page and updated the BreadcrumbList, logo to the cocial links in User info, Fixed: main container alignment, category navigation in breadcrumbs

* feat(Blog): Added: breadcrumbs to the post details page and updated the BreadcrumbList, logo to the cocial links in User info, Fixed: main container alignment, category navigation in breadcrumbs

* feat(Blog): Added scroll on the main blog page on filtering by author, fied breadcrumbs category translaion, added category to the recommended cards, fixed search for localisations

* feat(Blog): Changed image size on the post details page

* chore(release): update changelog for v0.5.0

* chore(release): v0.5.0

---------

Co-authored-by: liudmylasovetovs <milkaegik@gmail.com>
Co-authored-by: Tetiana Zorii <131365289+TiZorii@users.noreply.github.com>
Co-authored-by: Anna <komrakova.anna@gmail.com>
Co-authored-by: AlinaRyabova <alinavr7@gmail.com>
Co-authored-by: Yevhenii Datsenko <yevheniydatsenko@gmail.com>
Co-authored-by: YNazymko12 <yulychka12@gmail.com>
Co-authored-by: liudmylasovetovs <127711697+liudmylasovetovs@users.noreply.github.com>
Co-authored-by: AlinaRyabova <115992255+AlinaRyabova@users.noreply.github.com>
Co-authored-by: Lesia Soloviova <106915140+LesiaUKR@users.noreply.github.com>
Co-authored-by: Yuliia Nazymko <122815071+YNazymko12@users.noreply.github.com>
ViktorSvertoka added a commit that referenced this pull request Jan 31, 2026
* (SP: 1) [Security] Enforce origin posture for shop APIs (admin/checkout same-origin; internal/webhooks non-browser) + docs

* (SP: 1) [DB] Align stripe_events.order_id FK CASCADE across schema and migrations

* feat(i18n): localize quiz anti-cheat, header and blog filters (#175)

* feat(Blog): Adding last published post to the blog and category page, recommended posts, Changing styles to one unified format, Bug fixes

* Update leaderboard-style

* Update leaderboard-style

* teat(Blog): fix of hover on author, fix of the line

* (SP: 3) [Observability] Extend structured logging + correlation IDs across all shop routes; purge console.*; enforce explicit error codes

* (SP: 1) [Admin][Security] Add safe product delete (PRODUCT_IN_USE) + mobile cards UI; tighten env/docs, locale normalization, cache-control, and logging semantics

* fix: npm installing

* (SP: 1) [Admin] Align products list in use checks with DB column names (order_items/inventory_moves)

* fix:Update leaderboard: fixed background

* fix: remove email from CurrentUser type to prevent PII exposure

* refactor: align leaderboard UI with brand style (fixed bg, css vars, podium glow)

* (SP: 1) [Frontend] About Us Page. Fixed game, topics, mobile layout

- Fixed mobile tabs in FeaturesSection (icon-only on mobile)
- Fixed game bugs: collision detection, animation, scoring system
- Added multiple obstacle types with level progression
- Improved game sizing for mobile while preserving desktop
- Updated TopicsSection with local SVG icons and hover borders
- Made DynamicGridBackground static grid opt-in via showStaticGrid prop
- Limited SponsorsWall to display max 10 sponsors
- Optimized CommunitySection button layout for mobile

* refactor: update accent color hover effects to Footer

- Update Footer links to use --accent-primary on hover
- Update ThemeToggle icons to use --accent-primary on hover
- Both components adapt colors to light/dark theme

* refactor: improve accessibility

- Add focus-visible styles for keyboard navigation accessibility

* (SP: 1) [Shop] Fix Stripe checkout success redirect (remove duplicate locale /uk/uk) (#186)

* fix:leaderboard  update leaderboard-style

* fix:leaderboard  update leaderboard-style (#187)

* fix:leaderboard update leaderboard-style on mobile

* fix: resolve CodeRabbit issues and conflicts

* fix:leaderboard update leaderboard-style on mobile (#188)

* fix:leaderboard  update leaderboard-style

* fix:leaderboard update leaderboard-style on mobile

* fix: resolve CodeRabbit issues and conflicts

---------

Co-authored-by: Viktor Svertoka <victor.svertoka@gmail.com>

* (SP: 1) [Frontend] Changing hero headline on shop main page (#190)

* (SP: 1) [Shop] Fix checkout redirect 404 by removing duplicate locale in in-app routes and Stripe return_url

* (SP: 1) [Shop] Fix locale cart page and orderid page

* (SP: 1) [Frontend] Changin hero headline on shop main page

* (SP: 1) [Frontend] Fix styles shop home page, buttons (#191)

* fix: move row border to first cell to resolve CodeRabbit issue

* fix: move row border to first cell to resolve CodeRabbit issue new

* Feature/leaderboard style update (#192)

* (SP: 7) [UI] Quiz UI polish: tabs styling, category accents, color scheme (#181, #193, #194) (#195)

* Sanity (#196)

* feat(Blog):fix for clickable link in post details, fix for author details

* feat(Blog):refactoring after removing author modal

* feat(Blog): fix unified date format

* (SP: 3) [AI] Add AI word helper with Groq integration (#200)

* (SP: 3) [AI] Add AI word helper with Groq integration

- Implement Groq API with Llama 3.1 70B model
- Add text selection detection on Q&A page
- Create floating "Explain" button
- Build draggable modal with 3-language support (uk/en/pl)
- Add localStorage caching for instant repeated lookups
- Implement guest CTA (login/signup)
- Add rate limiting (10 requests/min)
- Auth-gated feature (registered users only)

Components:
- SelectableText: Detects text selection
- FloatingExplainButton: Appears on selection
- AIWordHelper: Main modal with explanations

* (SP: 1) i18n: fix Polish locale and set EN as default

* Sanity (#202)

* feat(Blog):fix for clickable link in post details, fix for author details

* feat(Blog):refactoring after removing author modal

* feat(Blog): fix unified date format

* feat(Blog): Fix for  click-outside-to-close search, recommended posts are limited to 3

* feat(Blog): selectedAuthorData fixed

* feat(Blog): Added description for /blog/[slug] metadata, Added Schema.org JSON‑LD for Article (BlogPosting) and BreadcrumbList , Added <time datetime> tags where blog dates renders

* Sanity (#203)

* feat(Blog):fix for clickable link in post details, fix for author details

* feat(Blog):refactoring after removing author modal

* feat(Blog): fix unified date format

* feat(Blog): Fix for  click-outside-to-close search, recommended posts are limited to 3

* feat(Blog): selectedAuthorData fixed

* feat(Blog): Added description for /blog/[slug] metadata, Added Schema.org JSON‑LD for Article (BlogPosting) and BreadcrumbList , Added <time datetime> tags where blog dates renders

* feat(Blog): fix hover social links, fixed duplication not found search

* (SP: 3) [Frontend] Refactor Header UI and navigation states (#201)

* (SP: 3) [Frontend] Refactor Header UI and navigation states

- Add icon to the language switcher

- Add GitHub icon with stars indicator (frontend only)

- Update logo styles

- Improve touch interaction styles

- Verify correct placement and alignment of all header components

- Make mobile header modal full-screen

- Disable background scroll when mobile menu is open

- Highlight active navigation item

- Update navigation styles:

- Highlight Shop link when user is on Home pages
- Highlight Home link when user is on Shop pages
- Style changes only, no routing or logic changes

* fix CodeRabbit

* update HeaderButton styles

* fix: add accessibility for HeaderButton

* (SP: 3) [Testing] Vitest config + unit + integration tests for quiz module (#204)

* feat(quiz-ui): quiz UI polish - tabs, category accents, color scheme (issues #181, #193, #194)

- Refactor QaTabButton to shared CategoryTabButton component
- Add category accent colors to QuizCard, buttons, progress indicators
- Standardize colors with CSS variables, traffic light timer
- Add DynamicGridBackground to quizzes list page
- Border-only answer feedback, semi-transparent progress styles

* docs: update .gitignore

* fix(quiz): align disqualification threshold with warning banner

Changed violationsCount > 3 to >= 3 in QuizResult points block
to match the warning banner threshold at line 124.

* feat(quiz-testing): add quiz unit tests

- Configure Vitest for quiz module
- Add test factories and setup utilities
- Add quiz-crypto tests (13 tests)
- Add quiz-session tests (12 tests)

* test(quiz): add integration tests for verify-answer API and useAntiCheat hook (#199)

- verify-answer.test.ts: 8 tests for API endpoint
  - Correct/wrong answer verification
  - Validation errors (missing fields, tampered data)
  - Security: rejects modified encrypted answers

- quiz-anticheat.test.ts: 10 tests for useAntiCheat hook
  - Detects copy, paste, context-menu, tab-switch events
  - Respects isActive flag
  - Reset and cleanup functionality

Total quiz tests: 52 (9 setup + 25 unit + 18 integration)

* test(quiz): expand test coverage to 90%+ with hooks, API routes, and UI flow

Add 28 new tests covering:
- useQuizSession hook (6 tests)
- useQuizGuards hook (8 tests)
- guest-quiz storage (5 tests)
- guest-result API route (5 tests)
- quiz-slug API route (3 tests)
- QuizContainer UI flow (1 test)

Coverage: 35% -> 90.94% (quiz scope)
Tests: 52 -> 80

* chore: remove coverage-quiz from git, add to .gitignore

* chore: add coverage-quiz to .gitignore, fix quiz guards test

* fix(leaderboard): improve table mobile

* fix(leaderboard): correct malformed shadow class syntax for avatar glow

* Feature/leaderboard style update (#206)

* fix:leaderboard  update leaderboard-style

* fix:leaderboard update leaderboard-style on mobile

* fix: resolve CodeRabbit issues and conflicts

* fix: move row border to first cell to resolve CodeRabbit issue

* fix: move row border to first cell to resolve CodeRabbit issue new

* fix(leaderboard): improve table mobile

* fix(leaderboard): correct malformed shadow class syntax for avatar glow

* test(q&a): add comprehensive qa tests and coverage setup (#208)

* test(q&a): add comprehensive qa tests and coverage setup

* test(q&a): align mocks and reset in qa tests

* (SP: 1) [Frontend] Remove Contacts References (#211)

* test(q&a): add comprehensive qa tests and coverage setup

* test(q&a): align mocks and reset in qa tests

* chore(nav): remove contacts page references

* Sanity (#209)

* feat(Blog):fix for clickable link in post details, fix for author details

* feat(Blog):refactoring after removing author modal

* feat(Blog): fix unified date format

* feat(Blog): Fix for  click-outside-to-close search, recommended posts are limited to 3

* feat(Blog): selectedAuthorData fixed

* feat(Blog): Added description for /blog/[slug] metadata, Added Schema.org JSON‑LD for Article (BlogPosting) and BreadcrumbList , Added <time datetime> tags where blog dates renders

* feat(Blog): fix hover social links, fixed duplication not found search

* feat(Blog): Added: breadcrumbs to the post details page and updated the BreadcrumbList, logo to the cocial links in User info, Fixed: main container alignment, category navigation in breadcrumbs

* feat(Blog): Added: breadcrumbs to the post details page and updated the BreadcrumbList, logo to the cocial links in User info, Fixed: main container alignment, category navigation in breadcrumbs

* feat(Blog): Added scroll on the main blog page on filtering by author, fied breadcrumbs category translaion, added category to the recommended cards, fixed search for localisations

* feat(Blog): Changed image size on the post details page

* chore(release): update changelog for v0.5.0

* chore(release): v0.5.0

* [Refactor] Code Quality Improvements: Accessibility, Mobile Support, … (#213)

* fix(leaderboard): adjust podium heights for better visibility on desktop

* Feature/leaderboard style update (#214)

* fix(leaderboard): fix layout centering

* feat(Blog) (#216)

* feat(Blog) (#218)

* feat(Blog):fix for clickable link in post details, fix for author details

* feat(Blog):refactoring after removing author modal

* feat(Blog): fix unified date format

* feat(Blog): Fix for  click-outside-to-close search, recommended posts are limited to 3

* feat(Blog): selectedAuthorData fixed

* feat(Blog): Added description for /blog/[slug] metadata, Added Schema.org JSON‑LD for Article (BlogPosting) and BreadcrumbList , Added <time datetime> tags where blog dates renders

* feat(Blog): fix hover social links, fixed duplication not found search

* feat(Blog): Added: breadcrumbs to the post details page and updated the BreadcrumbList, logo to the cocial links in User info, Fixed: main container alignment, category navigation in breadcrumbs

* feat(Blog): Added: breadcrumbs to the post details page and updated the BreadcrumbList, logo to the cocial links in User info, Fixed: main container alignment, category navigation in breadcrumbs

* feat(Blog): Added scroll on the main blog page on filtering by author, fied breadcrumbs category translaion, added category to the recommended cards, fixed search for localisations

* feat(Blog): Changed image size on the post details page

* feat(Blog): added tests

* feat(Blog): fix for big post on the post page, added tests

* feat(Blog): resolving comments

* feat(Blog): fixed hover for social links icins - dark theme

* (SP: 1) feat(i18n): translate 404 error page (#217)

- Add 404 translations (uk/en/pl)
- Implement [Global/Local/Combined] strategy
- Add helpful navigation links

* (SP: 2) [Frontend] Refactor Home HeroSection and Footer stylestor/home (#221)

* (SP:1) fix: 404 page layout (#219)

- 404 translations (uk/en/pl)
- Implement Global strategy

* feat(Blog) (#222)

* feat(Blog):fix for clickable link in post details, fix for author details

* feat(Blog):refactoring after removing author modal

* feat(Blog): fix unified date format

* feat(Blog): Fix for  click-outside-to-close search, recommended posts are limited to 3

* feat(Blog): selectedAuthorData fixed

* feat(Blog): Added description for /blog/[slug] metadata, Added Schema.org JSON‑LD for Article (BlogPosting) and BreadcrumbList , Added <time datetime> tags where blog dates renders

* feat(Blog): fix hover social links, fixed duplication not found search

* feat(Blog): Added: breadcrumbs to the post details page and updated the BreadcrumbList, logo to the cocial links in User info, Fixed: main container alignment, category navigation in breadcrumbs

* feat(Blog): Added: breadcrumbs to the post details page and updated the BreadcrumbList, logo to the cocial links in User info, Fixed: main container alignment, category navigation in breadcrumbs

* feat(Blog): Added scroll on the main blog page on filtering by author, fied breadcrumbs category translaion, added category to the recommended cards, fixed search for localisations

* feat(Blog): Changed image size on the post details page

* feat(Blog): added tests

* feat(Blog): fix for big post on the post page, added tests

* feat(Blog): resolving comments

* feat(Blog): fixed hover for social links icins - dark theme

* feat(Blog): bringing the style on the blog page to a single site style

* feat(blog): aligning syles

* feat(blog): resolving comment from CodeRabbit

* feat(blog):fix comment for deployment

* Update AI model from 'llama-3.3-70b-versatile' to 'llama3-70b-8192' (#223)

* (SP 2) [Frontend] Update Features section content and improve mobile UX (#224)

* (SP 2) [Frontend] Update Features section content and improve mobile UX

- Features Section: Refined feature content and visuals.
- Mobile UX: Improved responsive layout and scaling for feature cards and interactive elements.
- Visual Enhancements: Added dynamic particle background effects to the Pricing section.

* fix(review): address accessibility, security, and performance feedback

* fix(review): resolve accessibility and hydration issues

* fix(perf): implement frame-rate independent animations

* fix(review): address accessibility, security, and performance feedback

* fix(review): enable SSR for features section and support HiDPI canvas

* fix(review): correct HiDPI logic for particle canvas measurements

* (SP:3) feat(i18n): add UA and PL translations for shop/admin pages

Add comprehensive i18n support for shop and admin sections in 3 languages (en, uk,
  pl).

  Translation coverage:
  - Shop pages: main page, products, cart, checkout, orders
  - Admin pages: dashboard, products management, orders management
  - Navigation: header, mobile menu, category links
  - Product components: cards, filters, sort, badges (NEW/SALE)
  - Category names: Apparel, Lifestyle, Collectibles
  - All UI buttons, labels, and actions

  Key changes:
  - Added ~250+ translation keys to messages/en.json, messages/uk.json,
  messages/pl.json
  - Updated 20+ components to use useTranslations() and getTranslations()
  - Implemented color translation in cart and product detail pages
  - Translated hero message
  - Added badge translations

* fix(i18n): correct translation keys and localization in shop pages

  - Replace confusing error.order with success.orderLabel in checkout success page
  heading
  - Localize boolean stockRestored display (yes/no instead of true/false) in order
  details
  - Fix active state detection for shop category links in mobile menu using search
  params
  - Add missing translation keys (orderLabel, yes, no) to all locales (en, uk, pl)

* fix(netlify): resolve AI API crash and 404 locale/theme issues

AI fixes:
  - Extract getClientIp to separate file (avoid db import crash)
  - Add missing zod dependency to package.json

  404 page fixes:
  - Use NEXT_LOCALE cookie for locale detection on Netlify
  - Add theme detection script in root layout
  - Update styling with hero background and gradient text

* Update frontend/app/not-found.tsx

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* (SP:3) feat(i18n): translate about page and auth form validation messages

  - Add about page translations (EN, UK, PL)
  - Add auth.fields.validation translations for form errors

* fix(api): resolve Netlify 503 errors and harden AI explain endpoint

 - Use dynamic import for groq-sdk (Netlify compatibility)                                                    - Bypass rate limiting for unknown IPs (serverless safety)
  - Safe JSON parsing with request.text() + empty body check
  - Fix ReferenceError: remove undefined errorMessage variable
  - Remove sensitive debug info from client responses
  - Add i18n keys: pricing.heading, sponsors.ctaAriaLabel

* feat(api): add GET health check endpoint for ai-explain

* chore(release): v0.5.1

---------

Co-authored-by: liudmylasovetovs <milkaegik@gmail.com>
Co-authored-by: Tetiana Zorii <131365289+TiZorii@users.noreply.github.com>
Co-authored-by: Anna <komrakova.anna@gmail.com>
Co-authored-by: AlinaRyabova <alinavr7@gmail.com>
Co-authored-by: Yevhenii Datsenko <yevheniydatsenko@gmail.com>
Co-authored-by: YNazymko12 <yulychka12@gmail.com>
Co-authored-by: liudmylasovetovs <127711697+liudmylasovetovs@users.noreply.github.com>
Co-authored-by: AlinaRyabova <115992255+AlinaRyabova@users.noreply.github.com>
Co-authored-by: Lesia Soloviova <106915140+LesiaUKR@users.noreply.github.com>
Co-authored-by: Yuliia Nazymko <122815071+YNazymko12@users.noreply.github.com>
Co-authored-by: Yevhenii Datsenko <134847096+yevheniidatsenko@users.noreply.github.com>
Co-authored-by: tetiana zorii <tanyusha.zoriy@gmail.com>
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
@ViktorSvertoka ViktorSvertoka mentioned this pull request Jan 31, 2026
20 tasks
ViktorSvertoka added a commit that referenced this pull request Jan 31, 2026
* (SP: 1) [Security] Enforce origin posture for shop APIs (admin/checkout same-origin; internal/webhooks non-browser) + docs

* (SP: 1) [DB] Align stripe_events.order_id FK CASCADE across schema and migrations

* feat(i18n): localize quiz anti-cheat, header and blog filters (#175)

* feat(Blog): Adding last published post to the blog and category page, recommended posts, Changing styles to one unified format, Bug fixes

* Update leaderboard-style

* Update leaderboard-style

* teat(Blog): fix of hover on author, fix of the line

* (SP: 3) [Observability] Extend structured logging + correlation IDs across all shop routes; purge console.*; enforce explicit error codes

* (SP: 1) [Admin][Security] Add safe product delete (PRODUCT_IN_USE) + mobile cards UI; tighten env/docs, locale normalization, cache-control, and logging semantics

* fix: npm installing

* (SP: 1) [Admin] Align products list in use checks with DB column names (order_items/inventory_moves)

* fix:Update leaderboard: fixed background

* fix: remove email from CurrentUser type to prevent PII exposure

* refactor: align leaderboard UI with brand style (fixed bg, css vars, podium glow)

* (SP: 1) [Frontend] About Us Page. Fixed game, topics, mobile layout

- Fixed mobile tabs in FeaturesSection (icon-only on mobile)
- Fixed game bugs: collision detection, animation, scoring system
- Added multiple obstacle types with level progression
- Improved game sizing for mobile while preserving desktop
- Updated TopicsSection with local SVG icons and hover borders
- Made DynamicGridBackground static grid opt-in via showStaticGrid prop
- Limited SponsorsWall to display max 10 sponsors
- Optimized CommunitySection button layout for mobile

* refactor: update accent color hover effects to Footer

- Update Footer links to use --accent-primary on hover
- Update ThemeToggle icons to use --accent-primary on hover
- Both components adapt colors to light/dark theme

* refactor: improve accessibility

- Add focus-visible styles for keyboard navigation accessibility

* (SP: 1) [Shop] Fix Stripe checkout success redirect (remove duplicate locale /uk/uk) (#186)

* fix:leaderboard  update leaderboard-style

* fix:leaderboard  update leaderboard-style (#187)

* fix:leaderboard update leaderboard-style on mobile

* fix: resolve CodeRabbit issues and conflicts

* fix:leaderboard update leaderboard-style on mobile (#188)

* fix:leaderboard  update leaderboard-style

* fix:leaderboard update leaderboard-style on mobile

* fix: resolve CodeRabbit issues and conflicts

---------



* (SP: 1) [Frontend] Changing hero headline on shop main page (#190)

* (SP: 1) [Shop] Fix checkout redirect 404 by removing duplicate locale in in-app routes and Stripe return_url

* (SP: 1) [Shop] Fix locale cart page and orderid page

* (SP: 1) [Frontend] Changin hero headline on shop main page

* (SP: 1) [Frontend] Fix styles shop home page, buttons (#191)

* fix: move row border to first cell to resolve CodeRabbit issue

* fix: move row border to first cell to resolve CodeRabbit issue new

* Feature/leaderboard style update (#192)

* (SP: 7) [UI] Quiz UI polish: tabs styling, category accents, color scheme (#181, #193, #194) (#195)

* Sanity (#196)

* feat(Blog):fix for clickable link in post details, fix for author details

* feat(Blog):refactoring after removing author modal

* feat(Blog): fix unified date format

* (SP: 3) [AI] Add AI word helper with Groq integration (#200)

* (SP: 3) [AI] Add AI word helper with Groq integration

- Implement Groq API with Llama 3.1 70B model
- Add text selection detection on Q&A page
- Create floating "Explain" button
- Build draggable modal with 3-language support (uk/en/pl)
- Add localStorage caching for instant repeated lookups
- Implement guest CTA (login/signup)
- Add rate limiting (10 requests/min)
- Auth-gated feature (registered users only)

Components:
- SelectableText: Detects text selection
- FloatingExplainButton: Appears on selection
- AIWordHelper: Main modal with explanations

* (SP: 1) i18n: fix Polish locale and set EN as default

* Sanity (#202)

* feat(Blog):fix for clickable link in post details, fix for author details

* feat(Blog):refactoring after removing author modal

* feat(Blog): fix unified date format

* feat(Blog): Fix for  click-outside-to-close search, recommended posts are limited to 3

* feat(Blog): selectedAuthorData fixed

* feat(Blog): Added description for /blog/[slug] metadata, Added Schema.org JSON‑LD for Article (BlogPosting) and BreadcrumbList , Added <time datetime> tags where blog dates renders

* Sanity (#203)

* feat(Blog):fix for clickable link in post details, fix for author details

* feat(Blog):refactoring after removing author modal

* feat(Blog): fix unified date format

* feat(Blog): Fix for  click-outside-to-close search, recommended posts are limited to 3

* feat(Blog): selectedAuthorData fixed

* feat(Blog): Added description for /blog/[slug] metadata, Added Schema.org JSON‑LD for Article (BlogPosting) and BreadcrumbList , Added <time datetime> tags where blog dates renders

* feat(Blog): fix hover social links, fixed duplication not found search

* (SP: 3) [Frontend] Refactor Header UI and navigation states (#201)

* (SP: 3) [Frontend] Refactor Header UI and navigation states

- Add icon to the language switcher

- Add GitHub icon with stars indicator (frontend only)

- Update logo styles

- Improve touch interaction styles

- Verify correct placement and alignment of all header components

- Make mobile header modal full-screen

- Disable background scroll when mobile menu is open

- Highlight active navigation item

- Update navigation styles:

- Highlight Shop link when user is on Home pages
- Highlight Home link when user is on Shop pages
- Style changes only, no routing or logic changes

* fix CodeRabbit

* update HeaderButton styles

* fix: add accessibility for HeaderButton

* (SP: 3) [Testing] Vitest config + unit + integration tests for quiz module (#204)

* feat(quiz-ui): quiz UI polish - tabs, category accents, color scheme (issues #181, #193, #194)

- Refactor QaTabButton to shared CategoryTabButton component
- Add category accent colors to QuizCard, buttons, progress indicators
- Standardize colors with CSS variables, traffic light timer
- Add DynamicGridBackground to quizzes list page
- Border-only answer feedback, semi-transparent progress styles

* docs: update .gitignore

* fix(quiz): align disqualification threshold with warning banner

Changed violationsCount > 3 to >= 3 in QuizResult points block
to match the warning banner threshold at line 124.

* feat(quiz-testing): add quiz unit tests

- Configure Vitest for quiz module
- Add test factories and setup utilities
- Add quiz-crypto tests (13 tests)
- Add quiz-session tests (12 tests)

* test(quiz): add integration tests for verify-answer API and useAntiCheat hook (#199)

- verify-answer.test.ts: 8 tests for API endpoint
  - Correct/wrong answer verification
  - Validation errors (missing fields, tampered data)
  - Security: rejects modified encrypted answers

- quiz-anticheat.test.ts: 10 tests for useAntiCheat hook
  - Detects copy, paste, context-menu, tab-switch events
  - Respects isActive flag
  - Reset and cleanup functionality

Total quiz tests: 52 (9 setup + 25 unit + 18 integration)

* test(quiz): expand test coverage to 90%+ with hooks, API routes, and UI flow

Add 28 new tests covering:
- useQuizSession hook (6 tests)
- useQuizGuards hook (8 tests)
- guest-quiz storage (5 tests)
- guest-result API route (5 tests)
- quiz-slug API route (3 tests)
- QuizContainer UI flow (1 test)

Coverage: 35% -> 90.94% (quiz scope)
Tests: 52 -> 80

* chore: remove coverage-quiz from git, add to .gitignore

* chore: add coverage-quiz to .gitignore, fix quiz guards test

* fix(leaderboard): improve table mobile

* fix(leaderboard): correct malformed shadow class syntax for avatar glow

* Feature/leaderboard style update (#206)

* fix:leaderboard  update leaderboard-style

* fix:leaderboard update leaderboard-style on mobile

* fix: resolve CodeRabbit issues and conflicts

* fix: move row border to first cell to resolve CodeRabbit issue

* fix: move row border to first cell to resolve CodeRabbit issue new

* fix(leaderboard): improve table mobile

* fix(leaderboard): correct malformed shadow class syntax for avatar glow

* test(q&a): add comprehensive qa tests and coverage setup (#208)

* test(q&a): add comprehensive qa tests and coverage setup

* test(q&a): align mocks and reset in qa tests

* (SP: 1) [Frontend] Remove Contacts References (#211)

* test(q&a): add comprehensive qa tests and coverage setup

* test(q&a): align mocks and reset in qa tests

* chore(nav): remove contacts page references

* Sanity (#209)

* feat(Blog):fix for clickable link in post details, fix for author details

* feat(Blog):refactoring after removing author modal

* feat(Blog): fix unified date format

* feat(Blog): Fix for  click-outside-to-close search, recommended posts are limited to 3

* feat(Blog): selectedAuthorData fixed

* feat(Blog): Added description for /blog/[slug] metadata, Added Schema.org JSON‑LD for Article (BlogPosting) and BreadcrumbList , Added <time datetime> tags where blog dates renders

* feat(Blog): fix hover social links, fixed duplication not found search

* feat(Blog): Added: breadcrumbs to the post details page and updated the BreadcrumbList, logo to the cocial links in User info, Fixed: main container alignment, category navigation in breadcrumbs

* feat(Blog): Added: breadcrumbs to the post details page and updated the BreadcrumbList, logo to the cocial links in User info, Fixed: main container alignment, category navigation in breadcrumbs

* feat(Blog): Added scroll on the main blog page on filtering by author, fied breadcrumbs category translaion, added category to the recommended cards, fixed search for localisations

* feat(Blog): Changed image size on the post details page

* chore(release): update changelog for v0.5.0

* chore(release): v0.5.0

* [Refactor] Code Quality Improvements: Accessibility, Mobile Support, … (#213)

* fix(leaderboard): adjust podium heights for better visibility on desktop

* Feature/leaderboard style update (#214)

* fix(leaderboard): fix layout centering

* feat(Blog) (#216)

* feat(Blog) (#218)

* feat(Blog):fix for clickable link in post details, fix for author details

* feat(Blog):refactoring after removing author modal

* feat(Blog): fix unified date format

* feat(Blog): Fix for  click-outside-to-close search, recommended posts are limited to 3

* feat(Blog): selectedAuthorData fixed

* feat(Blog): Added description for /blog/[slug] metadata, Added Schema.org JSON‑LD for Article (BlogPosting) and BreadcrumbList , Added <time datetime> tags where blog dates renders

* feat(Blog): fix hover social links, fixed duplication not found search

* feat(Blog): Added: breadcrumbs to the post details page and updated the BreadcrumbList, logo to the cocial links in User info, Fixed: main container alignment, category navigation in breadcrumbs

* feat(Blog): Added: breadcrumbs to the post details page and updated the BreadcrumbList, logo to the cocial links in User info, Fixed: main container alignment, category navigation in breadcrumbs

* feat(Blog): Added scroll on the main blog page on filtering by author, fied breadcrumbs category translaion, added category to the recommended cards, fixed search for localisations

* feat(Blog): Changed image size on the post details page

* feat(Blog): added tests

* feat(Blog): fix for big post on the post page, added tests

* feat(Blog): resolving comments

* feat(Blog): fixed hover for social links icins - dark theme

* (SP: 1) feat(i18n): translate 404 error page (#217)

- Add 404 translations (uk/en/pl)
- Implement [Global/Local/Combined] strategy
- Add helpful navigation links

* (SP: 2) [Frontend] Refactor Home HeroSection and Footer stylestor/home (#221)

* (SP:1) fix: 404 page layout (#219)

- 404 translations (uk/en/pl)
- Implement Global strategy

* feat(Blog) (#222)

* feat(Blog):fix for clickable link in post details, fix for author details

* feat(Blog):refactoring after removing author modal

* feat(Blog): fix unified date format

* feat(Blog): Fix for  click-outside-to-close search, recommended posts are limited to 3

* feat(Blog): selectedAuthorData fixed

* feat(Blog): Added description for /blog/[slug] metadata, Added Schema.org JSON‑LD for Article (BlogPosting) and BreadcrumbList , Added <time datetime> tags where blog dates renders

* feat(Blog): fix hover social links, fixed duplication not found search

* feat(Blog): Added: breadcrumbs to the post details page and updated the BreadcrumbList, logo to the cocial links in User info, Fixed: main container alignment, category navigation in breadcrumbs

* feat(Blog): Added: breadcrumbs to the post details page and updated the BreadcrumbList, logo to the cocial links in User info, Fixed: main container alignment, category navigation in breadcrumbs

* feat(Blog): Added scroll on the main blog page on filtering by author, fied breadcrumbs category translaion, added category to the recommended cards, fixed search for localisations

* feat(Blog): Changed image size on the post details page

* feat(Blog): added tests

* feat(Blog): fix for big post on the post page, added tests

* feat(Blog): resolving comments

* feat(Blog): fixed hover for social links icins - dark theme

* feat(Blog): bringing the style on the blog page to a single site style

* feat(blog): aligning syles

* feat(blog): resolving comment from CodeRabbit

* feat(blog):fix comment for deployment

* Update AI model from 'llama-3.3-70b-versatile' to 'llama3-70b-8192' (#223)

* (SP 2) [Frontend] Update Features section content and improve mobile UX (#224)

* (SP 2) [Frontend] Update Features section content and improve mobile UX

- Features Section: Refined feature content and visuals.
- Mobile UX: Improved responsive layout and scaling for feature cards and interactive elements.
- Visual Enhancements: Added dynamic particle background effects to the Pricing section.

* fix(review): address accessibility, security, and performance feedback

* fix(review): resolve accessibility and hydration issues

* fix(perf): implement frame-rate independent animations

* fix(review): address accessibility, security, and performance feedback

* fix(review): enable SSR for features section and support HiDPI canvas

* fix(review): correct HiDPI logic for particle canvas measurements

* (SP:3) feat(i18n): add UA and PL translations for shop/admin pages

Add comprehensive i18n support for shop and admin sections in 3 languages (en, uk,
  pl).

  Translation coverage:
  - Shop pages: main page, products, cart, checkout, orders
  - Admin pages: dashboard, products management, orders management
  - Navigation: header, mobile menu, category links
  - Product components: cards, filters, sort, badges (NEW/SALE)
  - Category names: Apparel, Lifestyle, Collectibles
  - All UI buttons, labels, and actions

  Key changes:
  - Added ~250+ translation keys to messages/en.json, messages/uk.json,
  messages/pl.json
  - Updated 20+ components to use useTranslations() and getTranslations()
  - Implemented color translation in cart and product detail pages
  - Translated hero message
  - Added badge translations

* fix(i18n): correct translation keys and localization in shop pages

  - Replace confusing error.order with success.orderLabel in checkout success page
  heading
  - Localize boolean stockRestored display (yes/no instead of true/false) in order
  details
  - Fix active state detection for shop category links in mobile menu using search
  params
  - Add missing translation keys (orderLabel, yes, no) to all locales (en, uk, pl)

* fix(netlify): resolve AI API crash and 404 locale/theme issues

AI fixes:
  - Extract getClientIp to separate file (avoid db import crash)
  - Add missing zod dependency to package.json

  404 page fixes:
  - Use NEXT_LOCALE cookie for locale detection on Netlify
  - Add theme detection script in root layout
  - Update styling with hero background and gradient text

* Update frontend/app/not-found.tsx



* (SP:3) feat(i18n): translate about page and auth form validation messages

  - Add about page translations (EN, UK, PL)
  - Add auth.fields.validation translations for form errors

* fix(api): resolve Netlify 503 errors and harden AI explain endpoint

 - Use dynamic import for groq-sdk (Netlify compatibility)                                                    - Bypass rate limiting for unknown IPs (serverless safety)
  - Safe JSON parsing with request.text() + empty body check
  - Fix ReferenceError: remove undefined errorMessage variable
  - Remove sensitive debug info from client responses
  - Add i18n keys: pricing.heading, sponsors.ctaAriaLabel

* feat(api): add GET health check endpoint for ai-explain

* chore(release): v0.5.1

---------

Co-authored-by: liudmylasovetovs <milkaegik@gmail.com>
Co-authored-by: Tetiana Zorii <131365289+TiZorii@users.noreply.github.com>
Co-authored-by: Anna <komrakova.anna@gmail.com>
Co-authored-by: AlinaRyabova <alinavr7@gmail.com>
Co-authored-by: Yevhenii Datsenko <yevheniydatsenko@gmail.com>
Co-authored-by: YNazymko12 <yulychka12@gmail.com>
Co-authored-by: liudmylasovetovs <127711697+liudmylasovetovs@users.noreply.github.com>
Co-authored-by: AlinaRyabova <115992255+AlinaRyabova@users.noreply.github.com>
Co-authored-by: Lesia Soloviova <106915140+LesiaUKR@users.noreply.github.com>
Co-authored-by: Yuliia Nazymko <122815071+YNazymko12@users.noreply.github.com>
Co-authored-by: Yevhenii Datsenko <134847096+yevheniidatsenko@users.noreply.github.com>
Co-authored-by: tetiana zorii <tanyusha.zoriy@gmail.com>
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
@coderabbitai coderabbitai Bot mentioned this pull request Feb 1, 2026
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2 participants