Add Pezkuwi SDK UI - Polkadot.js Apps clone

- Clone Polkadot.js Apps repository
- Update package.json with Pezkuwi branding
- Add Pezkuwi endpoint to production chains (wss://pezkuwichain.app:9944)
- Create comprehensive README for SDK UI
- Set up project structure with all packages

Next steps:
- Apply Kurdistan colors (Kesk, Sor, Zer, Spi + Black) to UI theme
- Replace logos with Pezkuwi branding
- Test build and deployment

pezkuwi-sdk-ui/packages/react-components/src/InputRpc/SelectSection.tsx

@@ -0,0 +1,36 @@
+// Copyright 2017-2025 @polkadot/react-components authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import type { DefinitionRpcExt } from '@polkadot/types/types';
+import type { DropdownOptions } from '../util/types.js';
+
+import React from 'react';
+
+import Dropdown from '../Dropdown.js';
+import { filterDropdownItems } from '../util/index.js';
+
+interface Props {
+  className?: string;
+  defaultValue?: string;
+  isError?: boolean;
+  onChange: (value: string) => void;
+  options: DropdownOptions;
+  value: DefinitionRpcExt;
+}
+
+function SelectSection ({ className = '', defaultValue, isError, onChange, options, value }: Props): React.ReactElement<Props> {
+  return (
+    <Dropdown
+      className={`${className} ui--DropdownLinked-Sections`}
+      defaultValue={defaultValue}
+      isError={isError}
+      onChange={onChange}
+      onSearch={filterDropdownItems}
+      options={options}
+      value={value.section}
+      withLabel={false}
+    />
+  );
+}
+
+export default React.memo(SelectSection);