Prevents StateError when data builder is called with empty list
by displaying loading indicator instead of passing empty list to
activeSeason(), matching title screen behavior.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Add seasonRefreshProvider (once-per-session FutureProvider) and activeSeason()
helper; HomeScreen listens and invalidates seasonsProvider when new packs arrive;
season_map_screen and season_title_screen switch from list.first to activeSeason.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- Guard addPostFrameCallback with !_autoScrolled so it only fires once per
widget lifetime instead of on every LayoutBuilder rebuild.
- Derive seasonComplete flag; pass it into _node so the last stage uses
gold "done" styling (not "current/next") when the season is fully 3-starred.
- Extract const Color(0xFF232B4A) to GamePalette.lockedNode.
- Remove warnIfMissed: false from tap call in season_map_screen_test; ensureVisible
already guarantees hit-testing succeeds (confirmed: test still passes cleanly).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Replaces the plain GridView with a Candy-Crush-style journey map:
dotted serpentine path, circular nodes (gold=done, glowing=current,
dark+lock=locked), glass header, auto-scroll to current stage.
Updates season_map_screen_test to use Key('stage_node_$i') finders.
SaveRepository (versioned JSON over prefs) with best-result merging and
unlock walking; ContentRepository loads the bundled pack; SeasonFlow/
Progress notifiers orchestrate stage start -> win record -> advance.
Season map grid with stars/locks, Home -> Map -> Game navigation,
close button, next-stage action on the win overlay.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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