Ship Novya PWA with backend for deployable production use.

Fix production TypeScript builds and add DEPLOY.md so the app can be hosted from this repo.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/components/program/blocks/ExerciseBlock.tsx

@@ -0,0 +1,16 @@
+import { Lightbulb } from 'lucide-react';
+import type { ExerciseBlockData } from '@/types/contentBlocks';
+
+export function ExerciseBlock({ block }: { block: ExerciseBlockData }) {
+  return (
+    <div className="rounded-lg border border-amber-500/20 bg-amber-500/5 p-3">
+      <div className="mb-1 flex items-center gap-2">
+        <Lightbulb className="h-4 w-4 text-amber-600" />
+        <p className="text-sm font-medium text-amber-900 dark:text-amber-200">
+          {block.title ?? 'تمرین'}
+        </p>
+      </div>
+      <p className="text-sm text-amber-800 dark:text-amber-300">{block.prompt}</p>
+    </div>
+  );
+}