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/teyrchains/pezpallets/presale/src/mock.rs

@@ -12,7 +12,7 @@ use pezsp_runtime::{
 
 type Block = pezframe_system::mocking::MockBlock<Test>;
 
-// Configure a mock runtime to test the pallet.
+// Configure a mock runtime to test the pezpallet.
 pezframe_support::construct_runtime!(
 	pub enum Test
 	{
@@ -182,7 +182,7 @@ pub fn presale_treasury(presale_id: u32) -> u64 {
 	use pezsp_io::hashing::blake2_256;
 
 	// Create a unique account ID for each presale by hashing pezpallet_id + presale_id
-	// This matches the logic in pezpallet_presale::Pallet::presale_account_id
+	// This matches the logic in pezpallet_presale::Pezpallet::presale_account_id
 	let pezpallet_id = PresalePalletId::get();
 	let mut buf = Vec::new();
 	buf.extend_from_slice(&pezpallet_id.0[..]);