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/client/api/src/execution_extensions.rs

@@ -0,0 +1,130 @@
+// This file is part of Bizinikiwi.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+//! Execution extensions for runtime calls.
+//!
+//! This module is responsible for defining the execution
+//! strategy for the runtime calls and provide the right `Externalities`
+//! extensions to support APIs for particular execution context & capabilities.
+
+use parking_lot::RwLock;
+use pezsp_core::traits::{ReadRuntimeVersion, ReadRuntimeVersionExt};
+use pezsp_externalities::{Extension, Extensions};
+use pezsp_runtime::traits::{Block as BlockT, NumberFor};
+use std::{marker::PhantomData, sync::Arc};
+
+/// Generate the starting set of [`Extensions`].
+///
+/// These [`Extensions`] are passed to the environment a runtime is executed in.
+pub trait ExtensionsFactory<Block: BlockT>: Send + Sync {
+	/// Create [`Extensions`] for the given input.
+	///
+	/// - `block_hash`: The hash of the block in the context that extensions will be used.
+	/// - `block_number`: The number of the block in the context that extensions will be used.
+	fn extensions_for(&self, block_hash: Block::Hash, block_number: NumberFor<Block>)
+		-> Extensions;
+}
+
+impl<Block: BlockT> ExtensionsFactory<Block> for () {
+	fn extensions_for(&self, _: Block::Hash, _: NumberFor<Block>) -> Extensions {
+		Extensions::new()
+	}
+}
+
+impl<Block: BlockT, T: ExtensionsFactory<Block>> ExtensionsFactory<Block> for Vec<T> {
+	fn extensions_for(
+		&self,
+		block_hash: Block::Hash,
+		block_number: NumberFor<Block>,
+	) -> Extensions {
+		let mut exts = Extensions::new();
+		exts.extend(self.iter().map(|e| e.extensions_for(block_hash, block_number)));
+		exts
+	}
+}
+
+/// An [`ExtensionsFactory`] that registers an [`Extension`] before a certain block.
+pub struct ExtensionBeforeBlock<Block: BlockT, Ext> {
+	before: NumberFor<Block>,
+	_marker: PhantomData<fn(Ext) -> Ext>,
+}
+
+impl<Block: BlockT, Ext> ExtensionBeforeBlock<Block, Ext> {
+	/// Create the extension factory.
+	///
+	/// - `before`: The block number until the extension should be registered.
+	pub fn new(before: NumberFor<Block>) -> Self {
+		Self { before, _marker: PhantomData }
+	}
+}
+
+impl<Block: BlockT, Ext: Default + Extension> ExtensionsFactory<Block>
+	for ExtensionBeforeBlock<Block, Ext>
+{
+	fn extensions_for(&self, _: Block::Hash, block_number: NumberFor<Block>) -> Extensions {
+		let mut exts = Extensions::new();
+
+		if block_number < self.before {
+			exts.register(Ext::default());
+		}
+
+		exts
+	}
+}
+
+/// A producer of execution extensions for offchain calls.
+///
+/// This crate aggregates extensions available for the offchain calls
+/// and is responsible for producing a correct `Extensions` object.
+pub struct ExecutionExtensions<Block: BlockT> {
+	extensions_factory: RwLock<Box<dyn ExtensionsFactory<Block>>>,
+	read_runtime_version: Arc<dyn ReadRuntimeVersion>,
+}
+
+impl<Block: BlockT> ExecutionExtensions<Block> {
+	/// Create new `ExecutionExtensions` given an `extensions_factory`.
+	pub fn new(
+		extensions_factory: Option<Box<dyn ExtensionsFactory<Block>>>,
+		read_runtime_version: Arc<dyn ReadRuntimeVersion>,
+	) -> Self {
+		Self {
+			extensions_factory: extensions_factory
+				.map(RwLock::new)
+				.unwrap_or_else(|| RwLock::new(Box::new(()))),
+			read_runtime_version,
+		}
+	}
+
+	/// Set the new extensions_factory
+	pub fn set_extensions_factory(&self, maker: impl ExtensionsFactory<Block> + 'static) {
+		*self.extensions_factory.write() = Box::new(maker);
+	}
+
+	/// Produces default extensions based on the input parameters.
+	pub fn extensions(
+		&self,
+		block_hash: Block::Hash,
+		block_number: NumberFor<Block>,
+	) -> Extensions {
+		let mut extensions =
+			self.extensions_factory.read().extensions_for(block_hash, block_number);
+
+		extensions.register(ReadRuntimeVersionExt::new(self.read_runtime_version.clone()));
+		extensions
+	}
+}