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-signer/src/Tip.tsx

@@ -0,0 +1,53 @@
+// Copyright 2017-2025 @pezkuwi/react-signer authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import type { BN } from '@pezkuwi/util';
+
+import React, { useEffect, useState } from 'react';
+
+import { InputBalance, Modal, Toggle } from '@pezkuwi/react-components';
+import { BN_ZERO } from '@pezkuwi/util';
+
+import { useTranslation } from './translate.js';
+
+interface Props {
+  className?: string;
+  onChange: (tip?: BN) => void;
+}
+
+function Tip ({ className, onChange }: Props): React.ReactElement<Props> | null {
+  const { t } = useTranslation();
+  const [tip, setTip] = useState<BN | undefined>();
+  const [showTip, setShowTip] = useState(false);
+
+  useEffect((): void => {
+    onChange(showTip ? tip : BN_ZERO);
+  }, [onChange, showTip, tip]);
+
+  return (
+    <Modal.Columns
+      className={className}
+      hint={t('Adding an optional tip to the transaction could allow for higher priority, especially when the chain is busy.')}
+    >
+      <Toggle
+        className='tipToggle'
+        label={
+          showTip
+            ? t('Include an optional tip for faster processing')
+            : t('Do not include a tip for the block author')
+        }
+        onChange={setShowTip}
+        value={showTip}
+      />
+      {showTip && (
+        <InputBalance
+          isZeroable
+          label={t('Tip (optional)')}
+          onChange={setTip}
+        />
+      )}
+    </Modal.Columns>
+  );
+}
+
+export default React.memo(Tip);