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/arithmetic/fuzzer/src/normalize.rs

@@ -0,0 +1,58 @@
+// 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.
+
+//! # Running
+//! Running this fuzzer can be done with `cargo hfuzz run normalize`. `honggfuzz` CLI options can
+//! be used by setting `HFUZZ_RUN_ARGS`, such as `-n 4` to use 4 threads.
+//!
+//! # Debugging a panic
+//! Once a panic is found, it can be debugged with
+//! `cargo hfuzz run-debug normalize hfuzz_workspace/normalize/*.fuzz`.
+
+use honggfuzz::fuzz;
+use pezsp_arithmetic::Normalizable;
+
+type Ty = u64;
+
+fn main() {
+	let sum_limit = Ty::max_value() as u128;
+	let len_limit: usize = Ty::max_value().try_into().unwrap();
+
+	loop {
+		fuzz!(|data: (Vec<Ty>, Ty)| {
+			let (data, norm) = data;
+			if data.is_empty() {
+				return;
+			}
+			let pre_sum: u128 = data.iter().map(|x| *x as u128).sum();
+
+			let normalized = data.normalize(norm);
+			// error cases.
+			if pre_sum > sum_limit || data.len() > len_limit {
+				assert!(normalized.is_err())
+			} else if let Ok(normalized) = normalized {
+				// if sum goes beyond u128, panic.
+				let sum: u128 = normalized.iter().map(|x| *x as u128).sum();
+
+				// if this function returns Ok(), then it will ALWAYS be accurate.
+				assert_eq!(sum, norm as u128, "sums don't match {:?}, {}", normalized, norm);
+			} else {
+				panic!("Should have returned Ok for input = {:?}, target = {:?}", data, norm);
+			}
+		})
+	}
+}