feat: add Sign In with Google

Adds Google OAuth alongside existing Apple and email/password auth. Follows the same patterns as Apple Sign-In: state cookie for CSRF, anonymousId migration, and user linking by email. Key differences: Google callback is a GET redirect (sameSite: lax) and uses a static client secret instead of a signed JWT.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
George Powell
2026-03-25 01:39:24 -04:00
parent 321fac9aa8
commit db04da6a2c
12 changed files with 1654 additions and 1 deletions

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ALTER TABLE `daily_completions` ADD `guesses` text;--> statement-breakpoint
ALTER TABLE `user` ADD `google_id` text;--> statement-breakpoint
CREATE UNIQUE INDEX `user_google_id_unique` ON `user` (`google_id`);