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/scripts/ci/docker/subkey.Dockerfile

@@ -0,0 +1,31 @@
+FROM docker.io/library/ubuntu:20.04
+
+# metadata
+ARG VCS_REF
+ARG BUILD_DATE
+ARG IMAGE_NAME
+
+LABEL io.parity.image.authors="devops-team@parity.io" \
+	io.parity.image.vendor="Parity Technologies" \
+	io.parity.image.title="${IMAGE_NAME}" \
+	io.parity.image.description="Subkey: key generating utility for Bizinikiwi." \
+	io.parity.image.source="https://github.com/paritytech/bizinikiwi/blob/${VCS_REF}/scripts/ci/docker/subkey.Dockerfile" \
+	io.parity.image.revision="${VCS_REF}" \
+	io.parity.image.created="${BUILD_DATE}" \
+	io.parity.image.documentation="https://github.com/paritytech/bizinikiwi/tree/${VCS_REF}/subkey"
+
+# show backtraces
+ENV RUST_BACKTRACE 1
+
+# add user
+RUN useradd -m -u 1000 -U -s /bin/sh -d /subkey subkey
+
+# add subkey binary to docker image
+COPY ./subkey /usr/local/bin
+
+USER subkey
+
+# check if executable works in this container
+RUN /usr/local/bin/subkey --version
+
+ENTRYPOINT ["/usr/local/bin/subkey"]