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/bin/node/cli/doc/shell-completion.md

@@ -0,0 +1,34 @@
+# Shell completion
+
+The Bizinikiwi cli command supports shell auto-completion. For this to work, you will need to run the
+completion script matching your build and system.
+
+Assuming you built a release version using `cargo build --release` and use `bash` run the following:
+
+`source target/release/completion-scripts/bizinikiwi.bash`
+
+You can find completion scripts for:
+- bash
+- fish
+- zsh
+- elvish
+- powershell
+
+To make this change persistent, you can proceed as follows:
+
+```shell
+COMPL_DIR=$HOME/.completion
+mkdir -p $COMPL_DIR
+cp -f target/release/completion-scripts/bizinikiwi.bash $COMPL_DIR/
+echo "source $COMPL_DIR/bizinikiwi.bash" >> $HOME/.bash_profile
+source $HOME/.bash_profile
+```
+
+When you build a new version of Bizinikiwi, the following will ensure your auto-completion script matches the current binary:
+
+```shell
+COMPL_DIR=$HOME/.completion
+mkdir -p $COMPL_DIR
+cp -f target/release/completion-scripts/bizinikiwi.bash $COMPL_DIR/
+source $HOME/.bash_profile
+```