- Add license.php with tiered licensing (Trial, Basic, Professional, Enterprise)
- Add license_info table to database schema
- Add license management UI to settings (License tab)
- Add license status, activation, and usage API endpoints
- Add entry and user limit enforcement based on license tier
- Add feature flags for webhooks, IP enrichment, whitelabel, PTR records
- Update README with licensing documentation and customer deployment guide
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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