feat: Add dashboard API endpoints and service for sound statistics

app/core/dependencies.py

@@ -9,7 +9,9 @@ from app.core.database import get_db
 from app.core.logging import get_logger
 from app.models.user import User
 from app.services.auth import AuthService
+from app.services.dashboard import DashboardService
 from app.services.oauth import OAuthService
+from app.repositories.sound import SoundRepository
 from app.utils.auth import JWTUtils, TokenUtils
 
 logger = get_logger(__name__)
@@ -184,3 +186,11 @@ async def get_admin_user(
             detail="Not enough permissions",
         )
     return current_user
+
+
+async def get_dashboard_service(
+    session: Annotated[AsyncSession, Depends(get_db)],
+) -> DashboardService:
+    """Get the dashboard service."""
+    sound_repository = SoundRepository(session)
+    return DashboardService(sound_repository)