- Create user_settings table to store individual user preferences
- UserSettings model for get/set/delete user setting values
- Home::myProfile loads user settings with hospital defaults fallback
- Home::myProfileSave persists user settings to DB
- my_profile.php adds Sidebar Auto-Hide Delay field (0-60 seconds)
- welcome_message.php checks user settings first, then hospital default
- Setting value 0 = auto-hide disabled; blank = use hospital default
- Extensible table design for future user settings (color theme, etc)
- Safe delete for empty IPD charge groups with CSRF-safe AJAX
- Migration: add sort_order to ipd_item_type (backfilled)
- Sort order UI on create/edit/list views; persist in controller/model
- Up/Down swap buttons on group list (AJAX swap endpoint + CSRF refresh)
- Fix 500 on edit screen: restore missing getItemTypeById() in ItemIpdModel
- IpdBillingModel: propagate sort_order ordering to ipd-charges and bill-details tabs
- Billing IPD Charges tab: Bedside Clinical/Nursing Charge and Doctor Visit Charge panels now collapsible, start collapsed
- 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
