feat: Rebrand Polkadot/Substrate references to PezkuwiChain

This commit systematically rebrands various references from Parity Technologies'
Polkadot/Substrate ecosystem to PezkuwiChain within the kurdistan-sdk.

Key changes include:
- Updated external repository URLs (zombienet-sdk, parity-db, parity-scale-codec, wasm-instrument) to point to pezkuwichain forks.
- Modified internal documentation and code comments to reflect PezkuwiChain naming and structure.
- Replaced direct references to  with  or specific paths within the  for XCM, Pezkuwi, and other modules.
- Cleaned up deprecated  issue and PR references in various  and  files, particularly in  and  modules.
- Adjusted image and logo URLs in documentation to point to PezkuwiChain assets.
- Removed or rephrased comments related to external Polkadot/Substrate PRs and issues.

This is a significant step towards fully customizing the SDK for the PezkuwiChain ecosystem.

bizinikiwi/primitives/application-crypto/test/src/bls381.rs

@@ -0,0 +1,69 @@
+// This file is part of Bizinikiwi.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// 	http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Integration tests for bls12-381
+
+use pezsp_api::{ApiExt, ProvideRuntimeApi};
+use pezsp_application_crypto::{bls381::AppPair, RuntimePublic};
+use pezsp_core::{
+	bls381::Pair as Bls381Pair,
+	crypto::ByteArray,
+	proof_of_possession::{ProofOfPossessionGenerator, ProofOfPossessionVerifier},
+	testing::BLS381,
+	Pair,
+};
+use pezsp_keystore::{testing::MemoryKeystore, Keystore, KeystoreExt};
+use std::sync::Arc;
+use bizinikiwi_test_runtime_client::{
+	runtime::{TestAPI, TEST_OWNER},
+	DefaultTestClientBuilderExt, TestClientBuilder, TestClientBuilderExt,
+};
+
+#[test]
+fn bls381_works_in_runtime() {
+	pezsp_tracing::try_init_simple();
+	let keystore = Arc::new(MemoryKeystore::new());
+	let test_client = TestClientBuilder::new().build();
+
+	let mut runtime_api = test_client.runtime_api();
+	runtime_api.register_extension(KeystoreExt::new(keystore.clone()));
+
+	let (proof_of_possession, public) = runtime_api
+		.test_bls381_crypto(test_client.chain_info().genesis_hash)
+		.expect("Tests `bls381` crypto.");
+
+	let supported_keys = keystore.keys(BLS381).unwrap();
+	assert!(supported_keys.contains(&public.to_raw_vec()));
+
+	assert!(AppPair::verify_proof_of_possession(
+		TEST_OWNER,
+		&proof_of_possession.into(),
+		&public.into()
+	));
+}
+
+#[test]
+fn bls381_client_proof_of_possession_verified_by_runtime_public() {
+	let (mut test_pair, _) = Bls381Pair::generate();
+
+	let client_generated_proof_of_possession = test_pair.generate_proof_of_possession(TEST_OWNER);
+	assert!(RuntimePublic::verify_proof_of_possession(
+		&test_pair.public(),
+		TEST_OWNER,
+		&client_generated_proof_of_possession
+	));
+}