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

docs/sdk/src/guides/mod.rs

@@ -5,7 +5,7 @@
 //!
 //! The main user-journey covered by these guides is:
 //!
-//! * [`your_first_pallet`], where you learn what a FRAME pallet is, and write your first
+//! * [`your_first_pallet`], where you learn what a FRAME pezpallet is, and write your first
 //!   application logic.
 //! * [`your_first_runtime`], where you learn how to compile your pallets into a WASM runtime.
 //! * [`your_first_node`], where you learn how to run the said runtime in a node.
@@ -20,7 +20,7 @@
 //!
 //! Other guides are related to other miscellaneous topics and are listed as modules below.
 
-/// Write your first simple pallet, learning the most most basic features of FRAME along the way.
+/// Write your first simple pezpallet, learning the most most basic features of FRAME along the way.
 pub mod your_first_pallet;
 
 /// Write your first real [runtime](`crate::reference_docs::wasm_meta_protocol`),