Replace all display-name occurrences across web pages, Rust source,
docs, and Cargo metadata. Update localStorage token key from sq_token
to fs_token. Tagline "Klondike Solitaire" retained as genre descriptor.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Introduces the plumbing layer for Phase 3: GameStateResource wraps
solitaire_core::GameState, DragState tracks in-progress drags, and
SyncStatusResource holds runtime sync status. GamePlugin routes
Draw/Move/Undo/NewGame request events into GameState and emits
StateChangedEvent and GameWonEvent for downstream systems.
Also adds the Phase 3 implementation plan under docs/superpowers/plans/.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>