feat: initial commit — local services (backend + manager dashboard + waiter PWA)

Includes all work to date:
- local_backend: FastAPI backend with products, orders, tables, shifts, cloud sync
- manager_dashboard: React manager UI with product/category management, reports, settings
- waiter_pwa: React PWA for waiter devices
- Category reparent endpoint and UI
- Waiter domain: local_ip sent on heartbeat, waiter_domain persisted from cloud response
- QR code modal in AppInfoTab for waiter domain
- Product form: number input spinners removed, category pre-selected on new product
- Category row: count badge moved to far right

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

manager_dashboard/src/ui/Badge.jsx

@@ -0,0 +1,35 @@
+import { STATUS_STYLES } from './tokens'
+
+// Unified StatusBadge — replaces both src/components/StatusBadge.jsx
+// and the StatusBadge in TablePrimitives.jsx.
+//
+// Greek labels map to the canonical status keys used across the app.
+const LABELS = {
+  free:           'Ελεύθερο',
+  open:           'Ανοιχτό',
+  active:         'Ενεργό',
+  partially_paid: 'Μερική πληρωμή',
+  paid:           'Πληρώθηκε',
+  closed:         'Κλειστό',
+  'force-closed': 'Αναγκαστικό κλείσιμο',
+  cancelled:      'Ακυρώθηκε',
+  completed:      'Ολοκληρώθηκε',
+  failed:         'Απέτυχε',
+  success:        'Επιτυχία',
+}
+
+export default function Badge({ status, pulse = false }) {
+  const s = STATUS_STYLES[status] || STATUS_STYLES.closed
+  const label = LABELS[status] ?? (status ? status.replace(/[_-]/g, ' ') : 'άγνωστο')
+
+  return (
+    <span className={`inline-flex items-center gap-1.5 rounded-full px-2 py-0.5 text-[10px] font-mono uppercase tracking-[0.08em] ring-1 ring-inset ${s.bg} ${s.text} ${s.ring}`}>
+      <span className={`relative inline-block h-1.5 w-1.5 rounded-full flex-shrink-0 ${s.dot}`}>
+        {pulse && (status === 'active' || status === 'open') && (
+          <span className={`absolute inset-0 rounded-full ${s.dot} animate-ping opacity-75`} />
+        )}
+      </span>
+      {label}
+    </span>
+  )
+}