Build EHSAN Closed Donation Loop POC — full bilingual Arabic/English app

- Backend (api-server): Complete in-memory mock DB with 11 seed cases, 5 eligible
  beneficiaries, 3 donors, and WhatsApp log. All 14 API routes implemented across
  requests, donors, stats, and whatsapp-log. OpenClaw integration with OPENCLAW_SIMULATE
  toggle. UUID-based IDs. Full status machine (new → closed, 10 steps).

- Frontend (ehsan-poc): 8 pages fully implemented using all generated API hooks:
  Home (stats counters, 10-step workflow diagram), Request (form with eligibility
  result), Opportunities (card grid with progress bars), Donate (case summary +
  donor form), Admin (full data table with contextual action buttons), Track
  (10-step visual timeline in green), ThankYou (message form), WhatsApp Log
  (WhatsApp bubble preview + OpenClaw send button).

- Bilingual LanguageContext (AR/EN) with RTL/LTR toggle, localStorage persistence.
  EHSAN green palette (HSL 143), Tajawal font, fully responsive.
  TypeScript clean — zero errors.

artifacts/ehsan-poc/src/components/ui/checkbox.tsx

@@ -0,0 +1,28 @@
+import * as React from "react"
+import * as CheckboxPrimitive from "@radix-ui/react-checkbox"
+import { Check } from "lucide-react"
+
+import { cn } from "@/lib/utils"
+
+const Checkbox = React.forwardRef<
+  React.ElementRef<typeof CheckboxPrimitive.Root>,
+  React.ComponentPropsWithoutRef<typeof CheckboxPrimitive.Root>
+>(({ className, ...props }, ref) => (
+  <CheckboxPrimitive.Root
+    ref={ref}
+    className={cn(
+      "grid place-content-center peer h-4 w-4 shrink-0 rounded-sm border border-primary shadow focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:cursor-not-allowed disabled:opacity-50 data-[state=checked]:bg-primary data-[state=checked]:text-primary-foreground",
+      className
+    )}
+    {...props}
+  >
+    <CheckboxPrimitive.Indicator
+      className={cn("grid place-content-center text-current")}
+    >
+      <Check className="h-4 w-4" />
+    </CheckboxPrimitive.Indicator>
+  </CheckboxPrimitive.Root>
+))
+Checkbox.displayName = CheckboxPrimitive.Root.displayName
+
+export { Checkbox }