Wrap AnimatedBuilder in SizedBox.expand so the Stack fills the full
Scaffold body; alignment: Alignment.center now centers within the whole
screen instead of within the wordmark-sized intrinsic box.
Adds a regression widget test (test/ui/splash_screen_test.dart) that
asserts the wordmark dx is within 1px of screen-center at 1500ms into
the animation.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Shows "SEASON 1 / First Bloom / N stages" over the season background for
~1.6s between splash and home; tap anywhere skips. Bails to home on
content-load error. Adds seasonLabel/seasonStages l10n keys (en + ko).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
airkjw