Feat/account (#6)

* feat: update api schema

* feat: update schema

* feat: add spec and plan for account orders

* feat: make account pages routes

* fix: remove export for code splitting by routes

* feat: order detail pages

* fix: eslint and exports fix

* feat: remove account tabs

* feat: remove accounts tabs tests

* feat: remove rounded corners

* feat(auth): add Google OAuth2 sign-in

Redirect-based flow — no client SDK needed. Spring Boot handles
the Google OAuth2 exchange and returns tokens to /auth/callback.

* feat: add memory to gitignore

* feat: fix google signin endpoint

* test(cart): mock useAuth in CartPage tests

Author: tkahng

.gitignore

@@ -13,3 +13,4 @@ __unconfig*
 todos.json
 .superpowers/
 .claude/
+memory/