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/services/numbering.service.ts

@@ -16,7 +16,7 @@ const DEFAULT_INVOICE_PATTERN = "{YY}{CODE}{NNNN}";
  * Apply a numbering pattern template.
  * Placeholders: {YYYY}, {YY}, {PREFIX}, {CODE}, {N+} (padding = count of N's)
  */
-function applyPattern(
+export function applyPattern(
   pattern: string,
   vars: { year: number; prefix: string; code: string; seq: number },
 ): string {
@@ -52,7 +52,7 @@ async function getSettings() {
  * If `tx` is provided, the increment happens inside the caller's transaction
  * (no nested transaction is created).
  */
-async function getNextSequence(
+export async function getNextSequence(
   type: string,
   year: number,
   tx?: TxClient,