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/x-randomvalues/src/react-native.ts

@@ -0,0 +1,64 @@
+// Copyright 2017-2025 @polkadot/x-randomvalues authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+// Adapted from https://github.com/LinusU/react-native-get-random-values/blob/85f48393821c23b83b89a8177f56d3a81dc8b733/index.js
+//
+// Copyright (c) 2018, 2020 Linus Unnebäck
+// SPDX-License-Identifier: MIT
+
+import { NativeModules } from 'react-native';
+
+import { base64Decode } from '@pezkuwi/wasm-util/base64';
+import { xglobal } from '@pezkuwi/x-global';
+
+import { crypto as cryptoBrowser, getRandomValues as getRandomValuesBrowser } from './browser.js';
+
+export { packageInfo } from './packageInfo.js';
+
+interface RNExt {
+  ExpoRandom: {
+    getRandomBase64String: (length: number) => string;
+  };
+  RNGetRandomValues: {
+    getRandomBase64: (length: number) => string;
+  }
+}
+
+/**
+ * @internal
+ *
+ * A getRandomValues util that detects and uses the available RN
+ * random utiliy generation functions.
+ **/
+function getRandomValuesRn (output: Uint8Array): Uint8Array {
+  if (!NativeModules['ExpoRandom'] && !(NativeModules as RNExt).RNGetRandomValues) {
+    throw new Error('No secure random number generator available. This environment does not support crypto.getRandomValues and no React Native secure RNG module is available.');
+  }
+
+  return base64Decode(
+    (NativeModules as RNExt).RNGetRandomValues
+      ? (NativeModules as RNExt).RNGetRandomValues.getRandomBase64(output.length)
+      : (NativeModules as RNExt).ExpoRandom.getRandomBase64String(output.length),
+    output
+  );
+}
+
+// Check for native RN modules first (highest priority)
+const hasNativeRNModules = !!NativeModules['ExpoRandom'] || !!(NativeModules as RNExt).RNGetRandomValues;
+const hasNativeCrypto = typeof xglobal.crypto === 'object' && typeof xglobal.crypto.getRandomValues === 'function';
+
+export const getRandomValues = (
+  hasNativeRNModules
+    ? getRandomValuesRn
+    : hasNativeCrypto
+      ? getRandomValuesBrowser
+      : () => {
+        throw new Error('No secure random number generator available. This environment does not support crypto.getRandomValues.');
+      }
+);
+
+export const crypto = (
+  getRandomValues === getRandomValuesBrowser
+    ? cryptoBrowser
+    : { getRandomValues }
+);