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/FormModal.tsx

@@ -0,0 +1,118 @@
+import { useEffect, type ReactNode, type FormEvent } from "react";
+import { motion, AnimatePresence } from "framer-motion";
+import useModalLock from "../hooks/useModalLock";
+
+export interface FormModalProps {
+  isOpen: boolean;
+  onClose: () => void;
+  onSubmit?: () => void; // called when user clicks primary button (only if provided)
+  title: string;
+  children: ReactNode; // modal body (form fields)
+  submitLabel?: string; // primary button text
+  cancelLabel?: string; // cancel button text
+  loading?: boolean;
+  hideFooter?: boolean; // for "view-only" modals
+  size?: "sm" | "md" | "lg"; // optional
+  closeOnBackdrop?: boolean; // default true
+  closeOnEsc?: boolean; // default true
+}
+
+export default function FormModal({
+  isOpen,
+  onClose,
+  onSubmit,
+  title,
+  children,
+  submitLabel = "Uložit",
+  cancelLabel = "Zrušit",
+  loading = false,
+  hideFooter = false,
+  size = "md",
+  closeOnBackdrop = true,
+  closeOnEsc = true,
+}: FormModalProps) {
+  useModalLock(isOpen);
+
+  useEffect(() => {
+    if (!isOpen || !closeOnEsc) return;
+
+    function handleKeyDown(e: KeyboardEvent) {
+      if (e.key === "Escape" && !loading) {
+        onClose();
+      }
+    }
+
+    window.addEventListener("keydown", handleKeyDown);
+    return () => window.removeEventListener("keydown", handleKeyDown);
+  }, [isOpen, closeOnEsc, loading, onClose]);
+
+  const handleBackdropClick = () => {
+    if (closeOnBackdrop && !loading) onClose();
+  };
+
+  const handlePrimaryClick = (e: FormEvent) => {
+    e.preventDefault();
+    if (onSubmit) onSubmit();
+  };
+
+  const titleId = "form-modal-title";
+  const modalClassName =
+    size === "lg" ? "admin-modal admin-modal-lg" : "admin-modal";
+
+  return (
+    <AnimatePresence>
+      {isOpen && (
+        <motion.div
+          className="admin-modal-overlay"
+          initial={{ opacity: 0 }}
+          animate={{ opacity: 1 }}
+          exit={{ opacity: 0 }}
+          transition={{ duration: 0.2 }}
+        >
+          <div className="admin-modal-backdrop" onClick={handleBackdropClick} />
+          <motion.div
+            className={modalClassName}
+            role="dialog"
+            aria-modal="true"
+            aria-labelledby={titleId}
+            initial={{ opacity: 0, scale: 0.95, y: 20 }}
+            animate={{ opacity: 1, scale: 1, y: 0 }}
+            exit={{ opacity: 0, scale: 0.95, y: 20 }}
+            transition={{ duration: 0.2 }}
+          >
+            <div className="admin-modal-header">
+              <h2 id={titleId} className="admin-modal-title">
+                {title}
+              </h2>
+            </div>
+
+            <div className="admin-modal-body">{children}</div>
+
+            {!hideFooter && (
+              <div className="admin-modal-footer">
+                <button
+                  type="button"
+                  onClick={() => !loading && onClose()}
+                  className="admin-btn admin-btn-secondary"
+                  disabled={loading}
+                >
+                  {cancelLabel}
+                </button>
+                {onSubmit && (
+                  <button
+                    type="button"
+                    onClick={handlePrimaryClick}
+                    className="admin-btn admin-btn-primary"
+                    disabled={loading}
+                  >
+                    {loading ? "Zpracování..." : submitLabel}
+                  </button>
+                )}
+              </div>
+            )}
+          </motion.div>
+        </motion.div>
+      )}
+    </AnimatePresence>
+  );
+}