Draw-Three waste fan: slot.saturating_sub(1) was a constant shift that
hid slot-0 even when the pile had fewer cards than visible. Fixed to
slot.saturating_sub(rendered_len.saturating_sub(visible)) so small piles
fan correctly and only a genuine buffer card gets hidden. New regression
test covers the small-pile case.
Android toast: game-over "press D / N" message now shows touch-friendly
copy ("Tap the stock...") on Android via cfg gate.
Onboarding: SLIDE_COUNT drops from 3 to 2 on Android so first-time
users skip the keyboard-shortcuts slide (irrelevant on touchscreen).
spawn_slide dispatch is gated identically.
Hint button: added HintButton to the HUD action bar (order 4, between
Help and Modes). Clicking it triggers the async solver hint — same path
as the H key — via optional resources so headless tests stay clean.
All button-order and tooltip tests updated for the new 7-button bar.
Watch Replay: win-summary modal now shows a "Watch Replay" secondary
button alongside "Play Again". It loads the most recent entry from
ReplayHistoryResource and hands it to start_replay_playback, dismissing
the modal. Falls back to an info toast when the replay or playback
plugin is unavailable.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
funman300
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