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/pezframe/session/src/historical/onchain.rs

@@ -0,0 +1,59 @@
+// 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.
+
+//! On-chain logic to store a validator-set for deferred validation using an off-chain worker.
+
+use alloc::vec::Vec;
+use codec::Encode;
+use pezsp_runtime::traits::Convert;
+
+use super::{shared, Config as HistoricalConfig};
+use crate::{Config as SessionConfig, Pallet as SessionModule, SessionIndex};
+
+/// Store the validator-set associated to the `session_index` to the off-chain database.
+///
+/// Further processing is then done [`off-chain side`](super::offchain).
+///
+/// **Must** be called from on-chain, i.e. a call that originates from
+/// `on_initialize(..)` or `on_finalization(..)`.
+/// **Must** be called during the session, which validator-set is to be stored for further
+/// off-chain processing. Otherwise the `FullIdentification` might not be available.
+pub fn store_session_validator_set_to_offchain<T: HistoricalConfig + SessionConfig>(
+	session_index: SessionIndex,
+) {
+	let encoded_validator_list = <SessionModule<T>>::validators()
+		.into_iter()
+		.filter_map(|validator_id: <T as SessionConfig>::ValidatorId| {
+			let full_identification =
+				<<T as HistoricalConfig>::FullIdentificationOf>::convert(validator_id.clone());
+			full_identification.map(|full_identification| (validator_id, full_identification))
+		})
+		.collect::<Vec<_>>();
+
+	encoded_validator_list.using_encoded(|encoded_validator_list| {
+		let derived_key = shared::derive_key(shared::PREFIX, session_index);
+		pezsp_io::offchain_index::set(derived_key.as_slice(), encoded_validator_list);
+	});
+}
+
+/// Store the validator set associated to the _current_ session index to the off-chain database.
+///
+/// See [`store_session_validator_set_to_offchain`]
+/// for further information and restrictions.
+pub fn store_current_session_validator_set_to_offchain<T: HistoricalConfig + SessionConfig>() {
+	store_session_validator_set_to_offchain::<T>(<SessionModule<T>>::current_index());
+}