- Migration: profiles.username is now nullable -- Google's OAuth
redirect can't collect a username up front the way the email/password
signup form does, so a first-time Google sign-in's profile is created
with no username.
- supabase/config.toml: [auth.external.google] enabled, credentials via
env() substitution (SUPABASE_AUTH_EXTERNAL_GOOGLE_CLIENT_ID/_SECRET
in .env.local, which the CLI auto-loads). skip_nonce_check is on,
which Supabase's own docs call out as required for local sign-in.
- LoginScreen: "Continue with Google" alongside the existing
email/password form.
- CompleteProfileScreen: one-time gate for a signed-in user with no
username yet (i.e. first Google sign-in) -- same hard-gate spirit as
email verification, nothing else is usable until a username is set.
- App.tsx now checks profiles.username after establishing a session and
routes to CompleteProfileScreen before AppShell when it's missing.
RLS test suite re-run clean (23/23) after the schema change.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017DUU6CnxECCDeqDNYJgr5x
