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.

pezkuwi/node/core/approval-voting/src/lib.rs

@@ -58,10 +58,10 @@ use pezkuwi_primitives::{
 	Hash, SessionIndex, SessionInfo, ValidatorId, ValidatorIndex, ValidatorPair,
 	ValidatorSignature,
 };
-use sc_keystore::LocalKeystore;
-use sp_application_crypto::Pair;
-use sp_consensus::SyncOracle;
-use sp_consensus_slots::Slot;
+use pezsc_keystore::LocalKeystore;
+use pezsp_application_crypto::Pair;
+use pezsp_consensus::SyncOracle;
+use pezsp_consensus_slots::Slot;
 use std::time::Instant;
 
 // The max number of blocks we keep track of assignments gathering times. Normally,
@@ -1552,7 +1552,7 @@ pub async fn start_approval_worker<
 // of actions are generated by handling a single action.
 //
 // This particular problem statement is specified in issue 3311:
-// 	https://github.com/paritytech/polkadot/issues/3311
+// 	https://github.com/pezkuwichain/kurdistan-sdk/issues/142
 //
 // returns `true` if any of the actions was a `Conclude` command.
 #[overseer::contextbounds(ApprovalVoting, prefix = self::overseer)]