v3.0.2 Release Notes

Features

Custom API Backend

• Migrated authentication from Supabase to a custom API backend with JWT + refresh token flow

• Added email OTP login with 6-digit verification code and cooldown timer

• Added OAuth callback page for Google and GitHub login redirects

• Persistent token storage in localStorage with automatic refresh on 401

3-Tier Subscription Plans

• New pricing structure: Free, Pro, and Max plans

• Redesigned pricing drawer with Free banner and Pro/Max side-by-side comparison

• Plan-aware feature gating with typed `Plan` union type

Backend i18n Error Messages

• API errors now carry localized messages (`en`/`zh`) from the backend

• Redemption code errors display in the user's language automatically

Bug Fixes

• Fixed login state lost on page refresh — only clear auth on UNAUTHORIZED, not on network errors or 5xx

• Removed redundant profile fetch in `initializeAuth` that doubled API calls on every page load

Refactor

• Removed `@supabase/supabase-js` dependency and `src/lib/supabase.ts`

• Added `ApiError` class with `getLocalizedMessage()` for i18n error handling

• Removed frontend-maintained redemption error translations (backend-provided now)

• Cleaned up `console.log` in environment validation