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/pezpallets/dmp-queue/Cargo.toml

@@ -4,7 +4,7 @@ version = "0.7.0"
 authors.workspace = true
 edition.workspace = true
 repository.workspace = true
-description = "Migrates messages from the old DMP queue pallet."
+description = "Migrates messages from the old DMP queue pezpallet."
 license = "Apache-2.0"
 documentation = "https://docs.rs/pezcumulus-pezpallet-dmp-queue"
 homepage = { workspace = true }