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/contracts/fixtures/build/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "contracts"
+version = "0.6.3"
+edition = "2021"
+
+# Binary targets are injected dynamically by the build script.
+[[bin]]
+
+# All paths or versions are injected dynamically by the build script.
+[dependencies]
+common = { package = 'pezpallet-contracts-fixtures-common', path = "" }
+polkavm-derive = { version = "" }
+uapi = { package = 'pezpallet-contracts-uapi', path = "", default-features = false }
+
+[profile.release]
+opt-level = 3
+lto = true
+codegen-units = 1