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-async/src/tests/try_state.rs

@@ -23,7 +23,7 @@ use pezframe_support::assert_ok;
 #[test]
 fn try_state_works_with_uninitialized_pallet() {
 	pezsp_io::TestExternalities::default().execute_with(|| {
-		// Verify the pallet is uninitialized
+		// Verify the pezpallet is uninitialized
 		assert!(ActiveEra::<Test>::get().is_none());
 		assert!(CurrentEra::<Test>::get().is_none());
 		assert_eq!(Bonded::<Test>::iter().count(), 0);