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.css

@@ -41,6 +41,11 @@
   }
 }
 
+/* Danger card — highlighted border for alert/important cards */
+.admin-card-danger {
+  border: 2px solid var(--danger);
+}
+
 /* ============================================================================
    Badges
    ============================================================================ */
@@ -123,6 +128,16 @@
   color: var(--danger);
 }
 
+.admin-badge-incoming {
+  background: var(--success-soft);
+  color: var(--success);
+}
+
+.admin-badge-outgoing {
+  background: var(--info-soft);
+  color: var(--info);
+}
+
 /* Status Badges - Leave Requests */
 .badge-pending {
   background: color-mix(in srgb, var(--warning) 15%, transparent);
@@ -716,6 +731,7 @@
 .admin-kpi-grid {
   display: grid;
   gap: 0.875rem;
+  margin-bottom: 1rem;
 }
 
 .admin-kpi-4 {
@@ -923,3 +939,163 @@
   max-height: 80px;
   object-fit: contain;
 }
+
+/* ============================================================================
+   Search Bar & Filters
+   ============================================================================ */
+
+.admin-search-bar {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 0.5rem;
+  align-items: center;
+}
+
+.admin-search-bar .admin-form-input,
+.admin-search-bar .admin-form-select {
+  flex: 1 1 140px;
+  min-width: 140px;
+  max-width: 280px;
+}
+
+.admin-search-bar .react-datepicker-wrapper {
+  flex: 1 1 140px;
+  min-width: 140px;
+  max-width: 280px;
+}
+
+.admin-search-bar .admin-btn {
+  flex-shrink: 0;
+}
+
+.admin-search {
+  position: relative;
+  flex: 1 1 200px;
+  min-width: 180px;
+  max-width: 320px;
+  display: flex;
+  align-items: center;
+}
+
+.admin-search svg {
+  position: absolute;
+  left: 10px;
+  color: var(--text-muted);
+  pointer-events: none;
+}
+
+.admin-search .admin-form-input {
+  padding-left: 32px;
+}
+
+@media (max-width: 768px) {
+  .admin-search-bar {
+    flex-direction: column;
+    align-items: stretch;
+  }
+
+  .admin-search-bar .admin-form-input,
+  .admin-search-bar .admin-form-select {
+    max-width: 100%;
+  }
+
+  .admin-search-bar .react-datepicker-wrapper {
+    max-width: 100%;
+  }
+
+  .admin-search {
+    max-width: 100%;
+    flex: 1 1 100%;
+  }
+}
+
+@media (max-width: 480px) {
+  .admin-search-bar .admin-form-input,
+  .admin-search-bar .admin-form-select {
+    min-width: 100%;
+  }
+
+  .admin-search-bar .react-datepicker-wrapper {
+    min-width: 100%;
+  }
+}
+
+/* ============================================================================
+   Item Picker (Warehouse)
+   ============================================================================ */
+
+.admin-item-picker-list {
+  position: absolute;
+  top: 100%;
+  left: 0;
+  right: 0;
+  z-index: 100;
+  max-height: 240px;
+  overflow-y: auto;
+  overscroll-behavior: contain;
+  background: var(--bg-primary);
+  border: 1px solid var(--border-color);
+  border-top: none;
+  border-radius: 0 0 var(--border-radius-sm) var(--border-radius-sm);
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
+  padding: 4px 0;
+  margin: 0;
+  list-style: none;
+}
+
+.admin-item-picker-list::-webkit-scrollbar {
+  width: 5px;
+}
+
+.admin-item-picker-list::-webkit-scrollbar-track {
+  background: transparent;
+}
+
+.admin-item-picker-list::-webkit-scrollbar-thumb {
+  background: var(--border-color);
+  border-radius: 99px;
+}
+
+.admin-item-picker-list::-webkit-scrollbar-thumb:hover {
+  background: var(--text-muted);
+}
+
+.admin-item-picker-item {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 0.5rem;
+  padding: 8px 12px;
+  cursor: pointer;
+  transition: background var(--transition);
+  border-radius: 4px;
+  margin: 0 4px;
+}
+
+.admin-item-picker-item:hover,
+.admin-item-picker-item.active {
+  background: var(--bg-secondary);
+}
+
+.admin-item-picker-name {
+  font-size: 13px;
+  font-weight: 500;
+  color: var(--text-primary);
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  min-width: 0;
+  flex: 1;
+}
+
+.admin-item-picker-number {
+  font-size: 11.5px;
+  color: var(--text-tertiary);
+  white-space: nowrap;
+}
+
+.admin-item-picker-qty {
+  font-size: 11.5px;
+  color: var(--text-secondary);
+  white-space: nowrap;
+}