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/dispatchable_impls.rs

@@ -26,7 +26,7 @@ use pezsp_arithmetic::traits::{CheckedDiv, Saturating, Zero};
 use pezsp_runtime::traits::{BlockNumberProvider, Convert};
 use CompletionStatus::{Complete, Partial};
 
-impl<T: Config> Pallet<T> {
+impl<T: Config> Pezpallet<T> {
 	pub(crate) fn do_configure(config: ConfigRecordOf<T>) -> DispatchResult {
 		config.validate().map_err(|()| Error::<T>::InvalidConfig)?;
 		Configuration::<T>::put(config);