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/test/index.ts

@@ -0,0 +1,8 @@
+// Copyright 2017-2025 @polkadot/util-crypto authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+// all external
+export { perf, perfCmp } from '@pezkuwi/util/test';
+
+// all local
+export { perfWasm } from './performance.js';

packages/util-crypto/src/test/performance.ts

@@ -0,0 +1,17 @@
+// Copyright 2017-2025 @polkadot/util-crypto authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import { arrayRange } from '@pezkuwi/util';
+import { perf, perfCmp } from '@pezkuwi/util/test';
+
+import { randomAsU8a } from '../index.js';
+
+type ExecFn = (input: Uint8Array, onlyJs: boolean) => unknown;
+
+const GENERATED = arrayRange(256).map(() => [randomAsU8a()]);
+
+export function perfWasm (name: string, count: number, exec: ExecFn, inputs = GENERATED): void {
+  perfCmp(name, ['WebAssembly', 'JavaScript'], count, inputs, exec);
+}
+
+export { perf, perfCmp };