Get user statistics and geographical distribution.

Only SUPERADMIN users can access user statistics.

Query Parameters:

• period: Time period filter (last_day, last_week, last_month, last_year, all)
• group_by: Grouping interval (quarter_hour, hour, day, week, month)
• country: Filter by specific country

Example Response: { "data": { "registration_trends": [ {"date": "2025-08-07", "new_users": 12, "total_users": 250}, {"date": "2025-08-08", "new_users": 8, "total_users": 258} ], "geographic_distribution": [ {"country": "USA", "user_count": 100, "percentage": 40.0}, {"country": "Brazil", "user_count": 75, "percentage": 30.0}, {"country": "Germany", "user_count": 50, "percentage": 20.0} ], "activity_stats": { "active_users_in_period": 234, "active_users_countries": 45, "never_executed": 123 } } }

Returns: JSON response with user statistics