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/crypto.ts

@@ -0,0 +1,18 @@
+// Copyright 2017-2025 @polkadot/util-crypto authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import { isReady, waitReady } from '@pezkuwi/wasm-crypto';
+
+export const cryptoIsReady = isReady;
+
+export function cryptoWaitReady (): Promise<boolean> {
+  return waitReady()
+    .then((): boolean => {
+      if (!isReady()) {
+        throw new Error('Unable to initialize @polkadot/util-crypto');
+      }
+
+      return true;
+    })
+    .catch(() => false);
+}