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/people/src/mock.rs

@@ -48,7 +48,7 @@ pub type UncheckedExtrinsic = pezsp_runtime::generic::UncheckedExtrinsic<
 	TransactionExtension,
 >;
 
-// Configure a mock runtime to test the pallet.
+// Configure a mock runtime to test the pezpallet.
 pezframe_support::construct_runtime!(
 	pub enum Test
 	{
@@ -373,7 +373,7 @@ pub fn setup_alias_account(
 	};
 	let call = RuntimeCall::PeoplePallet(crate::Call::set_alias_account {
 		account,
-		call_valid_at: pezframe_system::Pallet::<Test>::block_number(),
+		call_valid_at: pezframe_system::Pezpallet::<Test>::block_number(),
 	});
 	let other_tx_ext = (pezframe_system::CheckNonce::<Test>::from(0),);
 	// Here we simply ignore implicit as they are null.