fix(engine): platform-correct onboarding copy; Home waits for first-run onboarding (Phase H)

- The how-to-play slide told touch players to left/right-click; Android
  now gets tap/double-tap copy pointing at the bottom-bar Hint button.
- On a fresh profile the Home auto-show spawned underneath the
  onboarding modal, stacking two scrims (v0.44.0 emulator smoke
  finding). spawn_home_on_launch now waits until first_run_complete
  and the onboarding modal is gone, so the launch beat is onboarding,
  then Home, then the table.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

solitaire_engine/src/animation_plugin.rs

@@ -29,8 +29,8 @@ use crate::events::{
 use crate::game_plugin::GameMutation;
 use crate::layout::LayoutResource;
 use crate::pause_plugin::PausedResource;
-use crate::progress_plugin::LevelUpEvent;
 use crate::platform::USE_TOUCH_UI_LAYOUT;
+use crate::progress_plugin::LevelUpEvent;
 use crate::safe_area::SafeAreaAnchoredBottom;
 use crate::settings_plugin::{SettingsChangedEvent, SettingsResource};
 use crate::time_attack_plugin::TimeAttackEndedEvent;