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/vesting/src/tests.rs

@@ -34,7 +34,7 @@ const ED: u64 = 256;
 fn vest_and_assert_no_vesting<T>(account: u64)
 where
 	u64: EncodeLike<<T as pezframe_system::Config>::AccountId>,
-	T: pallet::Config,
+	T: pezpallet::Config,
 {
 	// Its ok for this to fail because the user may already have no schedules.
 	let _result = Vesting::vest(Some(account).into());