v1.8.0: warehouse module (16 commits), docházka mzda model, leave_type=holiday removal, api.ts race fix

Highlights:
- Warehouse module: receipts, issues, reservations, inventory, reports, dashboard,
  master data (categories, suppliers, locations), FIFO service, integration tests
- Docházka: mzda PDF counting model (Odpracováno / Vč. svátků / Přesčas / Svátek /
  So/Ne / Noc) with Czech weekday names and decimal hours
- AttendanceAdmin/AttendanceHistory KPI cards unified to mzda formula with
  fund bar colored by delta, badges for Práce/Dov/Nem/Sv/Nep
- Remove leave_type=holiday entirely (auto-computed from Czech public holidays)
- Allow multiple work shifts per day (overlap detection only)
- Pre-flight refresh in api.ts eliminates spurious 401s on fresh page loads
- Prisma: company_settings gets 6 nullable columns for warehouse numbering
  (PRI/VYD/INV prefixes, default patterns); migration seeds defaults

src/admin/components/ShiftFormModal.tsx

@@ -85,7 +85,15 @@ export interface ShiftFormModalProps {
 
 function ProjectTimeStatus({ form, projectLogs }: ProjectTimeStatusProps) {
   const totalWork = calcFormWorkMinutes(form);
-  const totalProject = calcProjectMinutesTotal(projectLogs);
+  const totalProject = calcProjectMinutesTotal(
+    projectLogs.map((l) => ({
+      ...l,
+      project_id:
+        l.project_id !== "" && l.project_id != null
+          ? Number(l.project_id)
+          : undefined,
+    })),
+  );
   const remaining = totalWork - totalProject;
   const hasLogs = projectLogs.some((l) => l.project_id);
 
@@ -329,7 +337,6 @@ export default function ShiftFormModal({
                     <option value="work">Práce</option>
                     <option value="vacation">Dovolená</option>
                     <option value="sick">Nemoc</option>
-                    <option value="holiday">Svátek</option>
                     <option value="unpaid">Neplacené volno</option>
                   </select>
                 </div>