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

pezcumulus/teyrchains/runtimes/constants/src/pezkuwichain.rs

@@ -151,7 +151,7 @@ pub mod snowbridge {
 	use pezframe_support::parameter_types;
 	use xcm::prelude::{Location, NetworkId};
 
-	/// The pallet index of the Ethereum inbound queue pallet in the bridge hub runtime.
+	/// The pezpallet index of the Ethereum inbound queue pezpallet in the bridge hub runtime.
 	pub const INBOUND_QUEUE_PALLET_INDEX: u8 = 80;
 
 	parameter_types! {