Initial rebrand: @polkadot -> @pezkuwi (3 packages)

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

Packages:
- @pezkuwi/dev (build tools, linting, CI scripts)
- @pezkuwi/dev-test (test runner)
- @pezkuwi/dev-ts (TypeScript build)

Upstream: polkadot-js/dev v0.83.3

packages/dev/src/rootJs/Clazz.ts

@@ -0,0 +1,45 @@
+// Copyright 2017-2025 @polkadot/dev authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+export class Clazz {
+  #something = 123_456_789;
+
+  readonly and: number;
+
+  static staticProperty = 'foobar';
+  static staticFunction = (): string|null => Clazz.staticProperty;
+
+  /**
+   * @param and the number we should and with
+   */
+  constructor (and: number) {
+    this.and = and;
+    this.#something = this.#something & and;
+  }
+
+  get something (): number {
+    return this.#something;
+  }
+
+  async doAsync (): Promise<boolean> {
+    const res = await new Promise<boolean>((resolve) => resolve(true));
+
+    console.log(res);
+
+    return res;
+  }
+
+  /**
+   * @description Sets something to something
+   * @param something The addition
+   */
+  setSomething = (something?: number): number => {
+    this.#something = (something ?? 123_456) & this.and;
+
+    return this.#something;
+  };
+
+  toString (): string {
+    return `something=${this.#something}`;
+  }
+}