Table: daily_targets
id - int(11) - 
required_referrals - int(11) - 
bonus_amount - decimal(10,2) - 
status - enum('active','inactive') - active
created_at - timestamp - current_timestamp()

Table: user_daily_bonuses
id - int(11) - 
user_id - int(11) - 
target_id - int(11) - 
bonus_amount - decimal(10,2) - 
bonus_date - date - 
claimed_at - timestamp - current_timestamp()

Table: settings
id - int(11) - 
setting_key - varchar(100) - 
setting_value - text - 
updated_at - timestamp - current_timestamp()