fix: Complete snowbridge pezpallet rebrand and critical bug fixes

- snowbridge-pezpallet-* → pezsnowbridge-pezpallet-* (201 refs)
- pallet/ directories → pezpallet/ (4 locations)
- Fixed pezpallet.rs self-include recursion bug
- Fixed sc-chain-spec hardcoded crate name in derive macro
- Reverted .pezpallet_by_name() to .pallet_by_name() (subxt API)
- Added BizinikiwiConfig type alias for zombienet tests
- Deleted obsolete session state files

Verified: pezsnowbridge-pezpallet-*, pezpallet-staking,
pezpallet-staking-async, pezframe-benchmarking-cli all pass cargo check

bizinikiwi/client/consensus/beefy/src/worker.rs

@@ -280,7 +280,7 @@ pub(crate) struct PersistedState<B: Block, AuthorityId: AuthorityIdBound> {
 	/// Chooses which incoming votes to accept and which votes to generate.
 	/// Keeps track of voting seen for current and future rounds.
 	voting_oracle: VoterOracle<B, AuthorityId>,
-	/// Pallet-beefy genesis block - block number when BEEFY consensus started for this chain.
+	/// Pezpallet-beefy genesis block - block number when BEEFY consensus started for this chain.
 	pezpallet_genesis: NumberFor<B>,
 }