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

templates/solochain/node/src/benchmarking.rs

@@ -30,7 +30,7 @@ impl RemarkBuilder {
 }
 
 impl pezframe_benchmarking_cli::ExtrinsicBuilder for RemarkBuilder {
-	fn pallet(&self) -> &str {
+	fn pezpallet(&self) -> &str {
 		"system"
 	}
 
@@ -69,7 +69,7 @@ impl TransferKeepAliveBuilder {
 }
 
 impl pezframe_benchmarking_cli::ExtrinsicBuilder for TransferKeepAliveBuilder {
-	fn pallet(&self) -> &str {
+	fn pezpallet(&self) -> &str {
 		"balances"
 	}