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-crypto/src/base58/decode.spec.ts

@@ -0,0 +1,31 @@
+// Copyright 2017-2025 @polkadot/util-crypto authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+/// <reference types="@polkadot/dev-test/globals.d.ts" />
+
+import { base32Decode } from '../base32/index.js';
+import { base58Decode } from './index.js';
+
+describe('base58Encode', (): void => {
+  it('decodes an empty string)', (): void => {
+    expect(
+      base58Decode('')
+    ).toEqual(new Uint8Array());
+  });
+
+  it('encodes a base58 to a base32', (): void => {
+    expect(
+      base58Decode('b2rhk6GMPQF3hfzwXTaNYFLKomMeC6UXdUt6jZKPpeVirLtV')
+    ).toEqual(
+      base32Decode('afkreigh2akiscaildcqabsyg3dfr6chu3fgpregiymsck7e7aqa4s52zy')
+    );
+  });
+
+  it('encodes a base58 to a base32 (ipfs-compat)', (): void => {
+    expect(
+      base58Decode('zb2rhk6GMPQF3hfzwXTaNYFLKomMeC6UXdUt6jZKPpeVirLtV', true)
+    ).toEqual(
+      base32Decode('bafkreigh2akiscaildcqabsyg3dfr6chu3fgpregiymsck7e7aqa4s52zy', true)
+    );
+  });
+});