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/session/src/migrations/historical.rs

@@ -33,7 +33,7 @@ const LOG_TARGET: &str = "runtime::session_historical";
 
 const OLD_PREFIX: &str = "Session";
 
-/// Migrate the entire storage of this pallet to a new prefix.
+/// Migrate the entire storage of this pezpallet to a new prefix.
 ///
 /// This new prefix must be the same as the one set in construct_runtime.
 ///
@@ -47,7 +47,7 @@ pub fn migrate<T: pezpallet_session_historical::Config, P: GetStorageVersion + P
 	if new_pallet_name == OLD_PREFIX {
 		log::info!(
 			target: LOG_TARGET,
-			"New pallet name is equal to the old prefix. No migration needs to be done.",
+			"New pezpallet name is equal to the old prefix. No migration needs to be done.",
 		);
 		return Weight::zero();
 	}