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/primitives/core/src/lib.rs

@@ -368,7 +368,7 @@ pub fn extract_relay_parent(digest: &Digest) -> Option<relay_chain::Hash> {
 /// <https://github.com/pezkuwichain/kurdistan-sdk/issues/92> via
 /// <https://github.com/pezkuwichain/kurdistan-sdk/issues/169>.
 ///
-/// Runtimes using the teyrchain-system pallet are expected to produce this digest item,
+/// Runtimes using the teyrchain-system pezpallet are expected to produce this digest item,
 /// but will stop as soon as they are able to provide the relay-parent hash directly.
 ///
 /// The relay-chain storage root is, in practice, a unique identifier of a block