feat: initial Pezkuwi Apps rebrand from polkadot-apps

Rebranded terminology:
- Polkadot → Pezkuwi
- Kusama → Dicle
- Westend → Zagros
- Rococo → PezkuwiChain
- Substrate → Bizinikiwi
- parachain → teyrchain

Custom logos with Kurdistan brand colors (#e6007a → #86e62a):
- bizinikiwi-hexagon.svg
- sora-bizinikiwi.svg
- hezscanner.svg
- heztreasury.svg
- pezkuwiscan.svg
- pezkuwistats.svg
- pezkuwiassembly.svg
- pezkuwiholic.svg

packages/page-contracts/src/Contracts/util.tsx

@@ -0,0 +1,45 @@
+// Copyright 2017-2025 @pezkuwi/app-contracts authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import type { DropdownItemProps } from 'semantic-ui-react';
+import type { ApiPromise } from '@pezkuwi/api';
+import type { AbiMessage } from '@pezkuwi/api-contract/types';
+
+import React from 'react';
+
+import { ContractPromise } from '@pezkuwi/api-contract';
+import { getContractAbi } from '@pezkuwi/react-components/util';
+
+import MessageSignature from '../shared/MessageSignature.js';
+
+export function findCallMethod (callContract: ContractPromise | null, callMethodIndex = 0): AbiMessage | null {
+  return callContract?.abi.messages[callMethodIndex] || null;
+}
+
+export function getContractMethodFn (callContract: ContractPromise | null, callMethodIndex: number | null): AbiMessage | null {
+  const fn = callMethodIndex !== null && callContract?.abi?.messages[callMethodIndex];
+
+  return fn || null;
+}
+
+export function getContractForAddress (api: ApiPromise, address: string | null): ContractPromise | null {
+  if (!address) {
+    return null;
+  } else {
+    const abi = getContractAbi(address);
+
+    return abi
+      ? new ContractPromise(api, abi, address)
+      : null;
+  }
+}
+
+export function getCallMessageOptions (callContract: ContractPromise | null): DropdownItemProps[] {
+  return callContract?.abi.messages.map((m, index) => ({
+    key: m.identifier,
+    text: (
+      <MessageSignature message={m} />
+    ),
+    value: index
+  })) || [];
+}