Replace ID-token claim reads with org store lookups in useAuth and
usePermissions; add currentOrgRoles to useOrgStore; update role names
to Logto org role conventions (admin/member); remove username from
Layout (no longer derived from token claims).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
The hand-rolled OIDC flow (manual PKCE, token exchange, URL
construction) was fragile and accumulated multiple bugs. Replaced
with the official @logto/react SDK which handles PKCE, token
exchange, storage, and refresh automatically.
- Add @logto/react SDK dependency
- Add LogtoProvider with runtime config in main.tsx
- Add TokenSync component bridging SDK tokens to API client
- Add useAuth hook replacing Zustand auth store
- Simplify LoginPage to signIn(), CallbackPage to useHandleSignInCallback()
- Delete pkce.ts and auth-store.ts (replaced by SDK)
- Fix react-router-dom → react-router imports in page files
- All 17 React Query hooks unchanged (token provider pattern)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
