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/collective/README.md

@@ -3,7 +3,7 @@ through dispatched calls from one of two specialized origins.
 
 The membership can be provided in one of two ways: either directly, using the Root-dispatchable
 function `set_members`, or indirectly, through implementing the `ChangeMembers`.
-The pallet assumes that the amount of members stays at or below `MaxMembers` for its weight
+The pezpallet assumes that the amount of members stays at or below `MaxMembers` for its weight
 calculations, but enforces this neither in `set_members` nor in `change_members_sorted`.
 
 A "prime" member may be set to help determine the default vote behavior based on chain