- Redact AIzaSy Gemini key from clinical_audit_trail entries in seed JSON
- Add default never-export denylist to exportMasterSeedData() so that
clinical_audit_trail, lab_log, bridge_sync_queue and session tables are
always skipped when setup.seed.export_tables is not configured.
This prevents API keys set via the admin UI from leaking into git via
the audit trail even after being deleted from hospital_setting.
- Add migration 2026-03-18-000028_CreateCityAutoUTable.php to create
the missing city_auto_u table (city, district, state columns) used
by PatientModel::getCitySuggestions() — resolves 500 on /billing/patient/city
- Fix HospitalProfile::save() to check directory creation success before
moving uploaded logo files; returns clean JSON error instead of
throwing HTTPException when public/assets/images/ is not writable