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feat(notify): add balance low & account quota notification system

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- User balance low notification: email alert when balance drops below
  configurable threshold (user email + verified extra emails)
- Account quota notification: broadcast email to admin-configured
  recipients when daily/weekly/total quota usage exceeds alert threshold
- Admin settings: global enable/disable, default threshold, quota
  notification email list (Email Settings tab)
- User profile: enable/disable, custom threshold, add/remove extra
  notification emails with verification code flow
- Account quota: per-dimension alert toggle and threshold in quota
  control card
- Trigger logic: first-crossing only (old >= threshold && new < threshold
  for balance; old < threshold && new >= threshold for quota), naturally
  prevents duplicate notifications without Redis dedup
This commit is contained in:
erio
2026-04-12 02:48:57 +08:00
parent 60b0fa81ec
commit b32d1a2c9f
47 changed files with 2375 additions and 121 deletions
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4
backend/migrations/101_add_balance_notify_fields.sql Normal file
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-- Balance notification user preferences
ALTER TABLE users ADD COLUMN IF NOT EXISTS balance_notify_enabled BOOLEAN NOT NULL DEFAULT true;
ALTER TABLE users ADD COLUMN IF NOT EXISTS balance_notify_threshold DECIMAL(20,8) DEFAULT NULL;
ALTER TABLE users ADD COLUMN IF NOT EXISTS balance_notify_extra_emails TEXT NOT NULL DEFAULT '[]';