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/client/consensus/babe/src/authorship.rs

@@ -44,7 +44,7 @@ pub(super) fn calculate_primary_threshold(
 	use num_traits::{cast::ToPrimitive, identities::One};
 
 	// Prevent div by zero and out of bounds access.
-	// While Babe's pallet implementation that ships with FRAME performs a sanity check over
+	// While Babe's pezpallet implementation that ships with FRAME performs a sanity check over
 	// configuration parameters, this is not sufficient to guarantee that `c.1` is non-zero
 	// (i.e. third party implementations are possible).
 	if c.1 == 0 || authority_index >= authorities.len() {