Initial rebrand: @polkadot -> @pezkuwi (14 packages)

- Package namespace: @polkadot/* -> @pezkuwi/*
- Repository: polkadot-js/common -> pezkuwichain/pezkuwi-common
- Author: Pezkuwi Team <team@pezkuwichain.io>

Core packages:
- @pezkuwi/util (utilities)
- @pezkuwi/util-crypto (crypto primitives)
- @pezkuwi/keyring (account management)
- @pezkuwi/networks (chain metadata)
- @pezkuwi/hw-ledger (Ledger hardware wallet)
- @pezkuwi/x-* (10 polyfill packages)

Total: 14 packages
Upstream: polkadot-js/common v14.0.1

packages/util/src/string/toHex.ts

@@ -0,0 +1,27 @@
+// Copyright 2017-2025 @polkadot/util authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import type { AnyString, HexString } from '../types.js';
+
+import { u8aToHex } from '../u8a/toHex.js';
+import { stringToU8a } from './toU8a.js';
+
+/**
+ * @name stringToHex
+ * @summary Creates a hex string from a utf-8 string
+ * @description
+ * String input values return the actual encoded hex value.
+ * @example
+ * <BR>
+ *
+ * ```javascript
+ * import { stringToHex } from '@pezkuwi/util';
+ *
+ * stringToU8a('hello'); // 0x68656c6c6f
+ * ```
+ */
+export function stringToHex (value?: AnyString): HexString {
+  return u8aToHex(
+    stringToU8a(value)
+  );
+}