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/primitives/utility/src/lib.rs

@@ -52,7 +52,7 @@ mod tests;
 /// `UpwardMessageSender` trait impl into a `SendXcm` trait impl.
 ///
 /// NOTE: This is a pretty dumb "just send it" router; we will probably want to introduce queuing
-/// to UMP eventually and when we do, the pallet which implements the queuing will be responsible
+/// to UMP eventually and when we do, the pezpallet which implements the queuing will be responsible
 /// for the `SendXcm` implementation.
 pub struct ParentAsUmp<T, W, P>(PhantomData<(T, W, P)>);
 impl<T, W, P> SendXcm for ParentAsUmp<T, W, P>