Initial commit: Pezkuwi SDK UI

Comprehensive web interface for interacting with Pezkuwi blockchain.

Features:
- Blockchain explorer
- Wallet management
- Staking interface
- Governance participation
- Developer tools

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

packages/react-hooks/src/useBrokerStatus.ts

@@ -0,0 +1,34 @@
+// Copyright 2017-2026 @pezkuwi/react-query authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import type { ApiPromise } from '@pezkuwi/api';
+import type { Option } from '@pezkuwi/types';
+import type { PezpalletBrokerStatusRecord } from '@pezkuwi/types/lookup';
+import type { BrokerStatus } from './types.js';
+
+import { useEffect, useState } from 'react';
+
+import { createNamedHook, useCall } from '@pezkuwi/react-hooks';
+
+function useBrokerStatusImpl (api: ApiPromise, ready: boolean): BrokerStatus | undefined {
+  const status = useCall<Option<PezpalletBrokerStatusRecord>>(ready && api?.query.broker?.status);
+  const [state, setState] = useState<BrokerStatus | undefined>();
+
+  useEffect((): void => {
+    if (!!status && status.isSome) {
+      const s = status.unwrap();
+
+      setState({
+        coreCount: s.coreCount?.toNumber(),
+        lastCommittedTimeslice: s.lastCommittedTimeslice?.toNumber(),
+        lastTimeslice: s.lastTimeslice?.toNumber(),
+        privatePoolSize: s.privatePoolSize?.toNumber(),
+        systemPoolSize: s.systemPoolSize?.toNumber()
+      });
+    }
+  }, [status]);
+
+  return state;
+}
+
+export const useBrokerStatus = createNamedHook('useBrokerStatus', useBrokerStatusImpl);