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/page-staking2/src/useValidatorsWaiting.ts

@@ -0,0 +1,32 @@
+// Copyright 2017-2026 @pezkuwi/app-staking authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import type { SessionInfo, Validator } from './types.js';
+
+import { useMemo } from 'react';
+
+import { createNamedHook } from '@pezkuwi/react-hooks';
+
+import { useCacheValue } from './useCache.js';
+import useValidatorsAll from './useValidatorsAll.js';
+
+function excludeValidators (from: Validator[], exclude: Validator[]): Validator[] {
+  return from.filter(({ stashId }) =>
+    !exclude.some((v) => v.stashId === stashId)
+  );
+}
+
+function useValidatorsWaitingImpl (favorites: string[], sessionInfo: SessionInfo, activeValidators?: Validator[]): Validator[] | undefined {
+  const allValidators = useValidatorsAll(favorites, sessionInfo);
+
+  // both active and all is already sorted and tagged, so we don't
+  // need to re-sort the waiting list
+  const tagged = useMemo(
+    () => allValidators && activeValidators && excludeValidators(allValidators, activeValidators),
+    [activeValidators, allValidators]
+  );
+
+  return useCacheValue('useValidatorsWaiting', tagged);
+}
+
+export default createNamedHook('useValidatorsWaiting', useValidatorsWaitingImpl);