Setup email alerts for low balance notifications

[rawgroundbeef]

Feature Request

Add email alert system to notify users when their account balance falls below a configured threshold.

Requirements

• Configure minimum balance threshold per user/account
• Send email notification when balance crosses below threshold
• Rate limiting to prevent spam (e.g., max 1 email per 24h per account)
• Allow users to opt-in/out of low balance alerts
• Include current balance and suggested action in email

Technical Notes

• Integration with existing email service/provider
• Background job/scheduler for balance checks
• Consider webhook option for real-time alerts

Priority

Medium - helps prevent service interruptions due to insufficient funds