Get Subscription Usage

Get subscription usage analytics for an organization.

This endpoint provides detailed subscription usage metrics for an organization,
showing resource consumption over time.

Parameters:
request (Request): The FastAPI request object
subscription_request (SubscriptionUsageRequest): Subscription request parameters
db (AsyncSession): Database session (injected)
organization_id (Optional[int]): Organization ID from the API key or request

Returns:
Dict[str, Any]: Subscription usage analytics data for the organization

Raises:
HTTPException:
- 400: If organization ID is missing
- 422: If there's a validation error in the request parameters
- 500: If an unexpected error occurs during data retrieval