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

pezkuwi/runtime/teyrchains/src/scheduler/tests.rs

@@ -690,7 +690,7 @@ fn session_change_decreasing_number_of_cores() {
 			_ => None,
 		});
 
-		scheduler::Pallet::<Test>::set_claim_queue(BTreeMap::from([
+		scheduler::Pezpallet::<Test>::set_claim_queue(BTreeMap::from([
 			(CoreIndex::from(0), VecDeque::from([assignment_a.clone()])),
 			// Leave a hole for core 1.
 			(CoreIndex::from(2), VecDeque::from([assignment_b.clone(), assignment_b.clone()])),