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/pezframe/broker/src/utility_impls.rs

@@ -30,7 +30,7 @@ use pezsp_arithmetic::{
 };
 use pezsp_runtime::traits::{AccountIdConversion, BlockNumberProvider};
 
-impl<T: Config> Pallet<T> {
+impl<T: Config> Pezpallet<T> {
 	pub fn current_timeslice() -> Timeslice {
 		let latest = RCBlockNumberProviderOf::<T::Coretime>::current_block_number();
 		let timeslice_period = T::TimeslicePeriod::get();