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/page-staking2/src/Pools/usePoolAccounts.ts

@@ -0,0 +1,45 @@
+// Copyright 2017-2025 @polkadot/app-staking authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import type { ApiPromise } from '@polkadot/api';
+import type { BN } from '@polkadot/util';
+import type { PoolAccounts } from './types.js';
+
+import { useMemo } from 'react';
+
+import { createNamedHook, useApi } from '@polkadot/react-hooks';
+import { bnToU8a, stringToU8a, u8aConcat } from '@polkadot/util';
+
+const EMPTY_H256 = new Uint8Array(32);
+const MOD_PREFIX = stringToU8a('modl');
+const U32_OPTS = { bitLength: 32, isLe: true };
+
+function createAccount (api: ApiPromise, palletId: Uint8Array, poolId: BN, index: number): string {
+  return api.registry.createType('AccountId32', u8aConcat(
+    MOD_PREFIX,
+    palletId,
+    new Uint8Array([index]),
+    bnToU8a(poolId, U32_OPTS),
+    EMPTY_H256
+  )).toString();
+}
+
+export function createAccounts (api: ApiPromise, poolId: BN): PoolAccounts {
+  const palletId = api.consts.nominationPools.palletId.toU8a();
+
+  return {
+    rewardId: createAccount(api, palletId, poolId, 1),
+    stashId: createAccount(api, palletId, poolId, 0)
+  };
+}
+
+function usePoolAccountsImpl (poolId: BN): PoolAccounts {
+  const { api } = useApi();
+
+  return useMemo(
+    () => createAccounts(api, poolId),
+    [api, poolId]
+  );
+}
+
+export default createNamedHook('usePoolAccounts', usePoolAccountsImpl);