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/runtimes/testing/yet-another-teyrchain/src/xcm_config.rs

@@ -95,7 +95,7 @@ pub type XcmOriginToTransactDispatchOrigin = (
 	// Native signed account converter; this just converts an `AccountId32` origin into a normal
 	// `RuntimeOrigin::Signed` origin of the same 32-byte value.
 	SignedAccountId32AsNative<RelayNetwork, RuntimeOrigin>,
-	// Xcm origins can be represented natively under the Xcm pallet's Xcm origin.
+	// Xcm origins can be represented natively under the Xcm pezpallet's Xcm origin.
 	XcmPassthrough<RuntimeOrigin>,
 );
 
@@ -185,7 +185,7 @@ impl pezpallet_xcm::Config for Runtime {
 	type XcmRouter = XcmRouter;
 	type ExecuteXcmOrigin = EnsureXcmOrigin<RuntimeOrigin, LocalOriginToLocation>;
 	type XcmExecuteFilter = Nothing;
-	// ^ Disable dispatchable execute on the XCM pallet.
+	// ^ Disable dispatchable execute on the XCM pezpallet.
 	// Needs to be `Everything` for local testing.
 	type XcmExecutor = XcmExecutor<XcmConfig>;
 	type XcmTeleportFilter = Everything;