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/useOwnStashes.ts

@@ -0,0 +1,71 @@
+// Copyright 2017-2026 @pezkuwi/react-hooks authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import type { ApiPromise } from '@pezkuwi/api';
+import type { Option } from '@pezkuwi/types';
+import type { AccountId, StakingLedger } from '@pezkuwi/types/interfaces';
+
+import { useMemo } from 'react';
+
+import { createNamedHook } from './createNamedHook.js';
+import { useAccounts } from './useAccounts.js';
+import { useApi } from './useApi.js';
+import { useCall } from './useCall.js';
+
+type IsInKeyring = boolean;
+
+function getStashes (allAccounts: string[], ownBonded: Option<AccountId>[], ownLedger: Option<StakingLedger>[]): [string, IsInKeyring][] {
+  const result: [string, IsInKeyring][] = [];
+
+  ownBonded.forEach((value, index): void => {
+    value.isSome && result.push([allAccounts[index], true]);
+  });
+
+  ownLedger.forEach((ledger): void => {
+    if (ledger.isSome) {
+      const stashId = ledger.unwrap().stash.toString();
+
+      !result.some(([accountId]) => accountId === stashId) && result.push([stashId, false]);
+    }
+  });
+
+  return result;
+}
+
+function useOwnStashesImpl (additional?: string[], apiOverride?: ApiPromise): [string, IsInKeyring][] | undefined {
+  const { allAccounts } = useAccounts();
+  const { api: connectedApi } = useApi();
+  const api = useMemo(() => apiOverride ?? connectedApi, [apiOverride, connectedApi]);
+
+  const ids = useMemo(
+    () => allAccounts.concat(additional || []),
+    [allAccounts, additional]
+  );
+
+  const ownBonded = useCall<Option<AccountId>[]>(ids.length !== 0 && api.query.staking?.bonded.multi, [ids]);
+  const ownLedger = useCall<Option<StakingLedger>[]>(ids.length !== 0 && api.query.staking?.ledger.multi, [ids]);
+
+  return useMemo(
+    () => ids.length
+      ? ownBonded && ownLedger
+        ? getStashes(ids, ownBonded, ownLedger)
+        : undefined
+      : [],
+    [ids, ownBonded, ownLedger]
+  );
+}
+
+export const useOwnStashes = createNamedHook('useOwnStashes', useOwnStashesImpl);
+
+function useOwnStashIdsImpl (additional?: string[]): string[] | undefined {
+  const ownStashes = useOwnStashes(additional);
+
+  return useMemo(
+    () => ownStashes
+      ? ownStashes.map(([stashId]) => stashId)
+      : undefined,
+    [ownStashes]
+  );
+}
+
+export const useOwnStashIds = createNamedHook('useOwnStashIds', useOwnStashIdsImpl);