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/attendance.css

@@ -318,12 +318,14 @@
 
 /* Leave Type Badges */
 .attendance-leave-badge {
-  display: inline-block;
-  padding: 0.25rem 0.5rem;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  padding: 0.25rem 0.55rem;
   border-radius: var(--border-radius-sm);
   font-size: 0.75rem;
   font-weight: 500;
-  margin-right: 0.25rem;
+  line-height: 1.2;
   background: var(--bg-tertiary);
   color: var(--text-secondary);
 }