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/apps-config/src/api/params/tracks/util.ts

@@ -0,0 +1,26 @@
+// Copyright 2017-2025 @polkadot/apps-config authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import type { BN } from '@polkadot/util';
+
+import { formatBalance } from '@polkadot/util';
+
+interface FormatOptions {
+  decimals: number;
+  forceUnit: '-',
+  withSi: true,
+  withUnit: string;
+}
+
+export function formatSpendFactory (options: FormatOptions): (mul: number, value: BN) => string {
+  return (mul: number, value: BN): string => {
+    // We lose the decimals here... depending on chain config, this could be non-optimal
+    // (A simple formatBalance(value.muln(mul), FMT_OPTS) formats to 4 decimals)
+    return `${formatBalance(value.muln(mul), options).split('.')[0]} ${options.withUnit}`;
+  };
+}
+
+export function compareFellowshipRank (trackId: number): (rank: BN) => boolean {
+  return (rank: BN): boolean =>
+    rank.gten(trackId);
+}