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/tracing/README.md

@@ -0,0 +1,15 @@
+Bizinikiwi tracing primitives and macros.
+
+To trace functions or individual code in Bizinikiwi, this crate provides [`within_span`]
+and [`enter_span`]. See the individual docs for how to use these macros.
+
+Note that to allow traces from wasm execution environment there are
+2 reserved identifiers for tracing `Field` recording, stored in the consts:
+`WASM_TARGET_KEY` and `WASM_NAME_KEY` - if you choose to record fields, you
+must ensure that your identifiers do not clash with either of these.
+
+Additionally, we have a const: `WASM_TRACE_IDENTIFIER`, which holds a span name used
+to signal that the 'actual' span name and target should be retrieved instead from
+the associated Fields mentioned above.
+
+License: Apache-2.0