Initial commit: Fork @polkadot/vanitygen to @pezkuwi/vanitygen

- Replace all @polkadot/* dependencies with @pezkuwi/*
- Update package.json metadata for Pezkuwichain
- Update CLI command from polkadot-js-vanitygen to pezkuwi-vanitygen
- Update network options: bizinikiwi, pezkuwi, dicle, zagros
- Set default network to pezkuwi (ss58Format: 42)
- Update documentation and README
- Build and test successful
- Version 1.0.0

runcli.mjs

@@ -0,0 +1,5 @@
+#!/usr/bin/env node
+// Copyright 2017-2025 @pezkuwi/vanitygen authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import './runcli.js';