Adds website theme serialization system

backend/app/main.py

@@ -10,7 +10,7 @@ from app.config import settings
 from app.database import async_session, engine
 from app.models import Base, Show, StationConfig, HistoryEntry, TeamMember, CommunityHighlight, Underwriter
 from app.user_models import User
-from app.api import events, auth, station_config, history, team, community, shows, storage, underwriters, stats, mobile_builds
+from app.api import events, auth, station_config, history, team, community, shows, storage, underwriters, stats, mobile_builds, theme
 
 
 def _cleanup_orphaned_sequences(sync_conn):
@@ -153,6 +153,14 @@ async def lifespan(app: FastAPI):
     async with async_session() as session:
         await _ensure_station_config(session)
 
+    # Write theme.json on startup
+    try:
+        from app.theme_export import write_theme_json
+        await write_theme_json()
+        print(f"  ✓ Theme JSON written to {settings.THEME_JSON_PATH}")
+    except Exception as e:
+        print(f"  WARNING: Failed to write theme.json on startup: {e}")
+
     # Bootstrap admin user if configured
     if settings.ADMIN_USERNAME and settings.ADMIN_PASSWORD:
         async with async_session() as session:
@@ -224,6 +232,7 @@ app.include_router(storage.router, prefix="/api/storage", tags=["storage"])
 app.include_router(underwriters.router, prefix="/api/underwriters", tags=["underwriters"])
 app.include_router(stats.router, prefix="/api/stats", tags=["stats"])
 app.include_router(mobile_builds.router, prefix="/api/mobile-builds", tags=["mobile-builds"])
+app.include_router(theme.router, prefix="/api/theme", tags=["theme"])
 
 # Dev-only admin router (disabled in production)
 if settings.ENV != "production":