b504d9d0b2
- The project create-modal start/end dates used raw <input type="date">; converted to <AdminDatePicker> so every date field in the app now goes through the shared component (react-datepicker on desktop, native on touch). - AdminDatePicker now defaults its placeholder by mode (date 'dd.mm.rrrr', month 'mm.rrrr', time 'hh:mm') so empty date fields always show a format hint; explicit placeholders (e.g. 'Od'/'Do' range filters) still override. - Dropped WarehouseReceiptForm's ad-hoc 'dd.mm.yyyy' so it inherits the unified Czech default. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>