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/examples/offchain-worker/README.md

@@ -1,7 +1,7 @@
 <!-- markdown-link-check-disable -->
-# Offchain Worker Example Pallet
+# Offchain Worker Example Pezpallet
 
-The Offchain Worker Example: A simple pallet demonstrating
+The Offchain Worker Example: A simple pezpallet demonstrating
 concepts, APIs and structures common to most offchain workers.
 
 Run `cargo doc --package pezpallet-example-offchain-worker --open` to view this module's
@@ -11,7 +11,7 @@ documentation.
 - [`Call`](./enum.Call.html)
 - [`Module`](./struct.Module.html)
 
-**This pallet serves as an example showcasing Bizinikiwi off-chain worker and is not meant to be
+**This pezpallet serves as an example showcasing Bizinikiwi off-chain worker and is not meant to be
 used in production.**
 
 ## Overview