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/support/src/hash.rs

@@ -0,0 +1,222 @@
+// 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.
+
+//! Hash utilities.
+
+use alloc::vec::Vec;
+use codec::{Codec, MaxEncodedLen};
+use pezsp_io::hashing::{blake2_128, blake2_256, twox_128, twox_256, twox_64};
+use pezsp_metadata_ir as metadata_ir;
+
+// This trait must be kept coherent with pezframe-support-procedural HasherKind usage
+pub trait Hashable: Sized {
+	fn blake2_128(&self) -> [u8; 16];
+	fn blake2_256(&self) -> [u8; 32];
+	fn blake2_128_concat(&self) -> Vec<u8>;
+	fn twox_128(&self) -> [u8; 16];
+	fn twox_256(&self) -> [u8; 32];
+	fn twox_64_concat(&self) -> Vec<u8>;
+	fn identity(&self) -> Vec<u8>;
+}
+
+impl<T: Codec> Hashable for T {
+	fn blake2_128(&self) -> [u8; 16] {
+		self.using_encoded(blake2_128)
+	}
+	fn blake2_256(&self) -> [u8; 32] {
+		self.using_encoded(blake2_256)
+	}
+	fn blake2_128_concat(&self) -> Vec<u8> {
+		self.using_encoded(Blake2_128Concat::hash)
+	}
+	fn twox_128(&self) -> [u8; 16] {
+		self.using_encoded(twox_128)
+	}
+	fn twox_256(&self) -> [u8; 32] {
+		self.using_encoded(twox_256)
+	}
+	fn twox_64_concat(&self) -> Vec<u8> {
+		self.using_encoded(Twox64Concat::hash)
+	}
+	fn identity(&self) -> Vec<u8> {
+		self.encode()
+	}
+}
+
+/// Hasher to use to hash keys to insert to storage.
+pub trait StorageHasher: 'static {
+	const METADATA: metadata_ir::StorageHasherIR;
+	type Output: AsRef<[u8]>;
+	fn hash(x: &[u8]) -> Self::Output;
+
+	/// The max length of the final hash, for the given key type.
+	fn max_len<K: MaxEncodedLen>() -> usize;
+}
+
+/// Hasher to use to hash keys to insert to storage.
+///
+/// Reversible hasher store the encoded key after the hash part.
+pub trait ReversibleStorageHasher: StorageHasher {
+	/// Split the hash part out of the input.
+	///
+	/// I.e. for input `&[hash ++ key ++ some]` returns `&[key ++ some]`
+	fn reverse(x: &[u8]) -> &[u8];
+}
+
+/// Store the key directly.
+pub struct Identity;
+impl StorageHasher for Identity {
+	const METADATA: metadata_ir::StorageHasherIR = metadata_ir::StorageHasherIR::Identity;
+	type Output = Vec<u8>;
+	fn hash(x: &[u8]) -> Vec<u8> {
+		x.to_vec()
+	}
+	fn max_len<K: MaxEncodedLen>() -> usize {
+		K::max_encoded_len()
+	}
+}
+impl ReversibleStorageHasher for Identity {
+	fn reverse(x: &[u8]) -> &[u8] {
+		x
+	}
+}
+
+/// Hash storage keys with `concat(twox64(key), key)`
+pub struct Twox64Concat;
+impl StorageHasher for Twox64Concat {
+	const METADATA: metadata_ir::StorageHasherIR = metadata_ir::StorageHasherIR::Twox64Concat;
+	type Output = Vec<u8>;
+	fn hash(x: &[u8]) -> Vec<u8> {
+		twox_64(x).iter().chain(x.iter()).cloned().collect::<Vec<_>>()
+	}
+	fn max_len<K: MaxEncodedLen>() -> usize {
+		K::max_encoded_len().saturating_add(8)
+	}
+}
+impl ReversibleStorageHasher for Twox64Concat {
+	fn reverse(x: &[u8]) -> &[u8] {
+		if x.len() < 8 {
+			log::error!("Invalid reverse: hash length too short");
+			return &[];
+		}
+		&x[8..]
+	}
+}
+
+/// Hash storage keys with `concat(blake2_128(key), key)`
+pub struct Blake2_128Concat;
+impl StorageHasher for Blake2_128Concat {
+	const METADATA: metadata_ir::StorageHasherIR = metadata_ir::StorageHasherIR::Blake2_128Concat;
+	type Output = Vec<u8>;
+	fn hash(x: &[u8]) -> Vec<u8> {
+		blake2_128(x).iter().chain(x.iter()).cloned().collect::<Vec<_>>()
+	}
+	fn max_len<K: MaxEncodedLen>() -> usize {
+		K::max_encoded_len().saturating_add(16)
+	}
+}
+impl ReversibleStorageHasher for Blake2_128Concat {
+	fn reverse(x: &[u8]) -> &[u8] {
+		if x.len() < 16 {
+			log::error!("Invalid reverse: hash length too short");
+			return &[];
+		}
+		&x[16..]
+	}
+}
+
+/// Hash storage keys with blake2 128
+pub struct Blake2_128;
+impl StorageHasher for Blake2_128 {
+	const METADATA: metadata_ir::StorageHasherIR = metadata_ir::StorageHasherIR::Blake2_128;
+	type Output = [u8; 16];
+	fn hash(x: &[u8]) -> [u8; 16] {
+		blake2_128(x)
+	}
+	fn max_len<K: MaxEncodedLen>() -> usize {
+		16
+	}
+}
+
+/// Hash storage keys with blake2 256
+pub struct Blake2_256;
+impl StorageHasher for Blake2_256 {
+	const METADATA: metadata_ir::StorageHasherIR = metadata_ir::StorageHasherIR::Blake2_256;
+	type Output = [u8; 32];
+	fn hash(x: &[u8]) -> [u8; 32] {
+		blake2_256(x)
+	}
+	fn max_len<K: MaxEncodedLen>() -> usize {
+		32
+	}
+}
+
+/// Hash storage keys with twox 128
+pub struct Twox128;
+impl StorageHasher for Twox128 {
+	const METADATA: metadata_ir::StorageHasherIR = metadata_ir::StorageHasherIR::Twox128;
+	type Output = [u8; 16];
+	fn hash(x: &[u8]) -> [u8; 16] {
+		twox_128(x)
+	}
+	fn max_len<K: MaxEncodedLen>() -> usize {
+		16
+	}
+}
+
+/// Hash storage keys with twox 256
+pub struct Twox256;
+impl StorageHasher for Twox256 {
+	const METADATA: metadata_ir::StorageHasherIR = metadata_ir::StorageHasherIR::Twox256;
+	type Output = [u8; 32];
+	fn hash(x: &[u8]) -> [u8; 32] {
+		twox_256(x)
+	}
+	fn max_len<K: MaxEncodedLen>() -> usize {
+		32
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use super::*;
+
+	#[test]
+	fn test_twox_64_concat() {
+		let r = Twox64Concat::hash(b"foo");
+		assert_eq!(r.split_at(8), (&twox_128(b"foo")[..8], &b"foo"[..]))
+	}
+
+	#[test]
+	fn test_blake2_128_concat() {
+		let r = Blake2_128Concat::hash(b"foo");
+		assert_eq!(r.split_at(16), (&blake2_128(b"foo")[..], &b"foo"[..]))
+	}
+
+	#[test]
+	fn max_lengths() {
+		use codec::Encode;
+		let encoded_0u32 = &0u32.encode()[..];
+		assert_eq!(Twox64Concat::hash(encoded_0u32).len(), Twox64Concat::max_len::<u32>());
+		assert_eq!(Twox128::hash(encoded_0u32).len(), Twox128::max_len::<u32>());
+		assert_eq!(Twox256::hash(encoded_0u32).len(), Twox256::max_len::<u32>());
+		assert_eq!(Blake2_128::hash(encoded_0u32).len(), Blake2_128::max_len::<u32>());
+		assert_eq!(Blake2_128Concat::hash(encoded_0u32).len(), Blake2_128Concat::max_len::<u32>());
+		assert_eq!(Blake2_256::hash(encoded_0u32).len(), Blake2_256::max_len::<u32>());
+		assert_eq!(Identity::hash(encoded_0u32).len(), Identity::max_len::<u32>());
+	}
+}