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

pezcumulus/teyrchains/runtimes/bridge-hubs/bridge-hub-zagros/tests/tests.rs

@@ -107,7 +107,7 @@ fn construct_extrinsic(
 			pezframe_system::CheckGenesis::<Runtime>::new(),
 			pezframe_system::CheckEra::<Runtime>::from(Era::immortal()),
 			pezframe_system::CheckNonce::<Runtime>::from(
-				pezframe_system::Pallet::<Runtime>::account(&account_id).nonce,
+				pezframe_system::Pezpallet::<Runtime>::account(&account_id).nonce,
 			),
 			pezframe_system::CheckWeight::<Runtime>::new(),
 		),