Major changes:
- Add audit_logging, advanced_sso, advanced_reporting features to Pro tier
- Persist session username for RBAC authorization after restart
- Add hot-dev auto-detection for pulse-pro binary (enables SQLite audit logging)
Frontend improvements:
- Replace isEnterprise() with hasFeature() for granular feature gating
- Update AuditLogPanel, OIDCPanel, RolesPanel, UserAssignmentsPanel, AISettings
- Update AuditWebhookPanel to use hasFeature('audit_logging')
Backend changes:
- Session store now persists and restores username field
- Update CreateSession/CreateOIDCSession to accept username parameter
- GetSessionUsername falls back to persisted username after restart
Testing:
- Update license_test.go to reflect Pro tier feature changes
- Update session tests for new username parameter
- Add GET /api/audit endpoint for listing events with filters
- Add GET /api/audit/:id/verify endpoint for signature verification
- Add AuditLogPanel UI component with filtering and verification
- Update docs with audit API documentation
- Add localStorage utils for persisting UI state
- Update gitignore patterns
