Add Pezkuwi SDK UI - Polkadot.js Apps clone

- Clone Polkadot.js Apps repository
- Update package.json with Pezkuwi branding
- Add Pezkuwi endpoint to production chains (wss://pezkuwichain.app:9944)
- Create comprehensive README for SDK UI
- Set up project structure with all packages

Next steps:
- Apply Kurdistan colors (Kesk, Sor, Zer, Spi + Black) to UI theme
- Replace logos with Pezkuwi branding
- Test build and deployment

pezkuwi-sdk-ui/packages/react-hooks/src/utils/dataProcessing.ts

@@ -0,0 +1,41 @@
+// Copyright 2017-2025 @polkadot/react-hooks authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import type { PalletBrokerScheduleItem } from '@polkadot/types/lookup';
+
+import { BN } from '@polkadot/util';
+
+export function hexToBin (hex: string): string {
+  return parseInt(hex, 16).toString(2);
+}
+
+export function processHexMask (mask: PalletBrokerScheduleItem['mask'] | undefined): string[] {
+  if (!mask) {
+    return [];
+  }
+
+  const trimmedHex: string = mask.toHex().slice(2);
+  const arr: string[] = trimmedHex.split('');
+  const buffArr: string[] = [];
+
+  arr.forEach((bit) => {
+    hexToBin(bit).split('').forEach((v) => buffArr.push(v));
+  });
+  buffArr.filter((v) => v === '1');
+
+  return buffArr;
+}
+
+export function stringToBN (value: string | undefined): BN {
+  if (!value) {
+    return new BN(0);
+  }
+
+  const sanitized = value.trim().replace(/,/g, '');
+
+  if (!/^\d+$/.test(sanitized)) {
+    throw new Error(`Invalid input for BN conversion: "${sanitized}"`);
+  }
+
+  return new BN(sanitized);
+}