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/referenda/README.md

@@ -1,8 +1,8 @@
-# Referenda Pallet
+# Referenda Pezpallet
 
-- [`Config`](https://docs.rs/pezpallet-referenda/latest/pallet_referenda/pallet/trait.Config.html)
-- [`Call`](https://docs.rs/pezpallet-referenda/latest/pallet_referenda/pallet/enum.Call.html)
+- [`Config`](https://docs.rs/pezpallet-referenda/latest/pallet_referenda/pezpallet/trait.Config.html)
+- [`Call`](https://docs.rs/pezpallet-referenda/latest/pallet_referenda/pezpallet/enum.Call.html)
 
 ## Overview
 
-The Referenda pallet handles the administration of general stakeholder voting.
+The Referenda pezpallet handles the administration of general stakeholder voting.