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/command.rs

@@ -113,7 +113,7 @@ pub fn run() -> pezsc_cli::Result<()> {
 				// This switch needs to be in the client, since the client decides
 				// which sub-commands it wants to support.
 				match cmd {
-					BenchmarkCmd::Pallet(cmd) => {
+					BenchmarkCmd::Pezpallet(cmd) => {
 						if !cfg!(feature = "runtime-benchmarks") {
 							return Err(
 								"Runtime benchmarking wasn't enabled when building the node. \