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/staking/src/testing_utils.rs

@@ -18,7 +18,7 @@
 //! Testing utils for staking. Provides some common functions to setup staking state, such as
 //! bonding validators, nominators, and generating different types of solutions.
 
-use crate::{Pallet as Staking, *};
+use crate::{Pezpallet as Staking, *};
 use pezframe_benchmarking::account;
 use pezframe_system::RawOrigin;
 use rand_chacha::{
@@ -254,5 +254,5 @@ pub fn migrate_to_old_currency<T: Config>(who: T::AccountId) {
 	asset::kill_stake::<T>(&who).expect("remove hold failed");
 
 	// replicate old behaviour of explicit increment of consumer.
-	pezframe_system::Pallet::<T>::inc_consumers(&who).expect("increment consumer failed");
+	pezframe_system::Pezpallet::<T>::inc_consumers(&who).expect("increment consumer failed");
 }