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/react-hooks/src/useBestNumber.ts

@@ -0,0 +1,25 @@
+// Copyright 2017-2025 @pezkuwi/react-hooks authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import type { BlockNumber } from '@pezkuwi/types/interfaces';
+
+import { createNamedHook } from './createNamedHook.js';
+import { useApi } from './useApi.js';
+import { useCall } from './useCall.js';
+import { useStakingAsyncApis } from './useStakingAsyncApis.js';
+
+function useBestNumberImpl (): BlockNumber | undefined {
+  const { api } = useApi();
+
+  return useCall<BlockNumber>(api.derive.chain.bestNumber);
+}
+
+function useBestNumberRelayImpl (): BlockNumber | undefined {
+  const { api } = useApi();
+  const { isStakingAsync, rcApi } = useStakingAsyncApis();
+
+  return useCall<BlockNumber>((isStakingAsync ? rcApi : api)?.derive.chain.bestNumber);
+}
+
+export const useBestNumber = createNamedHook('useBestNumber', useBestNumberImpl);
+export const useBestNumberRelay = createNamedHook('useBestNumberRelay', useBestNumberRelayImpl);