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-params/src/util.ts

@@ -0,0 +1,53 @@
+// Copyright 2017-2025 @pezkuwi/react-params authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import type { PalletAllianceCid } from '@pezkuwi/types/lookup';
+import type { ExpandedCid } from './types.js';
+
+import { CID, digest, varint } from 'multiformats';
+
+import { u8aToHex } from '@pezkuwi/util';
+
+export function fromIpfsCid (cid: string): ExpandedCid | null {
+  try {
+    const { code: codec, multihash: { code, digest }, version } = CID.parse(cid);
+
+    return {
+      codec,
+      hash: {
+        code,
+        digest: u8aToHex(digest)
+      },
+      version
+    };
+  } catch (error) {
+    console.error(`fromIpfsCid: ${(error as Error).message}::`, cid);
+
+    return null;
+  }
+}
+
+export function toIpfsCid (cid: PalletAllianceCid): string | null {
+  try {
+    const { codec, hash_: { code, digest: _bytes }, version } = cid;
+
+    // Since we use parse, encode into a fully-specified bytes to
+    // pass - <varint code> + <varint length> + bytes
+    const bytes = _bytes.toU8a(true);
+    const codeLen = varint.encodingLength(code.toNumber());
+    const sizeLen = varint.encodingLength(bytes.length);
+    const encoded = new Uint8Array(codeLen + sizeLen + bytes.length);
+
+    varint.encodeTo(code.toNumber(), encoded, 0);
+    varint.encodeTo(bytes.length, encoded, codeLen);
+    encoded.set(bytes, codeLen + sizeLen);
+
+    return CID
+      .create(version.index as 0, codec.toNumber(), digest.decode(encoded))
+      .toString();
+  } catch (error) {
+    console.error(`toIpfsCid: ${(error as Error).message}::`, cid.toHuman());
+
+    return null;
+  }
+}