Add Stadium Progress system and themed loading spinners

Stadium Progress & Achievements:
- Add StadiumVisit and Achievement SwiftData models
- Create Progress tab with interactive map view
- Implement photo-based visit import with GPS/date matching
- Add achievement badges (count-based, regional, journey)
- Create shareable progress cards for social media
- Add canonical data infrastructure (stadium identities, team aliases)
- Implement score resolution from free APIs (MLB, NBA, NHL stats)

UI Improvements:
- Add ThemedSpinner and ThemedSpinnerCompact components
- Replace all ProgressView() with themed spinners throughout app
- Fix sport selection state not persisting when navigating away

Bug Fixes:
- Fix Coast to Coast trips showing only 1 city (validation issue)
- Fix stadium progress showing 0/0 (filtering issue)
- Remove "Stadium Quest" title from progress view

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Scripts/data/league_structure.json

@@ -0,0 +1,227 @@
+[
+  {
+    "id": "mlb_league",
+    "sport": "MLB",
+    "type": "league",
+    "name": "Major League Baseball",
+    "abbreviation": "MLB",
+    "parent_id": null,
+    "display_order": 0
+  },
+  {
+    "id": "mlb_al",
+    "sport": "MLB",
+    "type": "conference",
+    "name": "American League",
+    "abbreviation": "AL",
+    "parent_id": "mlb_league",
+    "display_order": 1
+  },
+  {
+    "id": "mlb_nl",
+    "sport": "MLB",
+    "type": "conference",
+    "name": "National League",
+    "abbreviation": "NL",
+    "parent_id": "mlb_league",
+    "display_order": 2
+  },
+  {
+    "id": "mlb_al_east",
+    "sport": "MLB",
+    "type": "division",
+    "name": "AL East",
+    "abbreviation": null,
+    "parent_id": "mlb_al",
+    "display_order": 3
+  },
+  {
+    "id": "mlb_al_central",
+    "sport": "MLB",
+    "type": "division",
+    "name": "AL Central",
+    "abbreviation": null,
+    "parent_id": "mlb_al",
+    "display_order": 4
+  },
+  {
+    "id": "mlb_al_west",
+    "sport": "MLB",
+    "type": "division",
+    "name": "AL West",
+    "abbreviation": null,
+    "parent_id": "mlb_al",
+    "display_order": 5
+  },
+  {
+    "id": "mlb_nl_east",
+    "sport": "MLB",
+    "type": "division",
+    "name": "NL East",
+    "abbreviation": null,
+    "parent_id": "mlb_nl",
+    "display_order": 6
+  },
+  {
+    "id": "mlb_nl_central",
+    "sport": "MLB",
+    "type": "division",
+    "name": "NL Central",
+    "abbreviation": null,
+    "parent_id": "mlb_nl",
+    "display_order": 7
+  },
+  {
+    "id": "mlb_nl_west",
+    "sport": "MLB",
+    "type": "division",
+    "name": "NL West",
+    "abbreviation": null,
+    "parent_id": "mlb_nl",
+    "display_order": 8
+  },
+  {
+    "id": "nba_league",
+    "sport": "NBA",
+    "type": "league",
+    "name": "National Basketball Association",
+    "abbreviation": "NBA",
+    "parent_id": null,
+    "display_order": 9
+  },
+  {
+    "id": "nba_eastern",
+    "sport": "NBA",
+    "type": "conference",
+    "name": "Eastern Conference",
+    "abbreviation": "East",
+    "parent_id": "nba_league",
+    "display_order": 10
+  },
+  {
+    "id": "nba_western",
+    "sport": "NBA",
+    "type": "conference",
+    "name": "Western Conference",
+    "abbreviation": "West",
+    "parent_id": "nba_league",
+    "display_order": 11
+  },
+  {
+    "id": "nba_atlantic",
+    "sport": "NBA",
+    "type": "division",
+    "name": "Atlantic",
+    "abbreviation": null,
+    "parent_id": "nba_eastern",
+    "display_order": 12
+  },
+  {
+    "id": "nba_central",
+    "sport": "NBA",
+    "type": "division",
+    "name": "Central",
+    "abbreviation": null,
+    "parent_id": "nba_eastern",
+    "display_order": 13
+  },
+  {
+    "id": "nba_southeast",
+    "sport": "NBA",
+    "type": "division",
+    "name": "Southeast",
+    "abbreviation": null,
+    "parent_id": "nba_eastern",
+    "display_order": 14
+  },
+  {
+    "id": "nba_northwest",
+    "sport": "NBA",
+    "type": "division",
+    "name": "Northwest",
+    "abbreviation": null,
+    "parent_id": "nba_western",
+    "display_order": 15
+  },
+  {
+    "id": "nba_pacific",
+    "sport": "NBA",
+    "type": "division",
+    "name": "Pacific",
+    "abbreviation": null,
+    "parent_id": "nba_western",
+    "display_order": 16
+  },
+  {
+    "id": "nba_southwest",
+    "sport": "NBA",
+    "type": "division",
+    "name": "Southwest",
+    "abbreviation": null,
+    "parent_id": "nba_western",
+    "display_order": 17
+  },
+  {
+    "id": "nhl_league",
+    "sport": "NHL",
+    "type": "league",
+    "name": "National Hockey League",
+    "abbreviation": "NHL",
+    "parent_id": null,
+    "display_order": 18
+  },
+  {
+    "id": "nhl_eastern",
+    "sport": "NHL",
+    "type": "conference",
+    "name": "Eastern Conference",
+    "abbreviation": "East",
+    "parent_id": "nhl_league",
+    "display_order": 19
+  },
+  {
+    "id": "nhl_western",
+    "sport": "NHL",
+    "type": "conference",
+    "name": "Western Conference",
+    "abbreviation": "West",
+    "parent_id": "nhl_league",
+    "display_order": 20
+  },
+  {
+    "id": "nhl_atlantic",
+    "sport": "NHL",
+    "type": "division",
+    "name": "Atlantic",
+    "abbreviation": null,
+    "parent_id": "nhl_eastern",
+    "display_order": 21
+  },
+  {
+    "id": "nhl_metropolitan",
+    "sport": "NHL",
+    "type": "division",
+    "name": "Metropolitan",
+    "abbreviation": null,
+    "parent_id": "nhl_eastern",
+    "display_order": 22
+  },
+  {
+    "id": "nhl_central",
+    "sport": "NHL",
+    "type": "division",
+    "name": "Central",
+    "abbreviation": null,
+    "parent_id": "nhl_western",
+    "display_order": 23
+  },
+  {
+    "id": "nhl_pacific",
+    "sport": "NHL",
+    "type": "division",
+    "name": "Pacific",
+    "abbreviation": null,
+    "parent_id": "nhl_western",
+    "display_order": 24
+  }
+]