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/pezpallets/identity-kyc/src/weights.rs

@@ -28,7 +28,7 @@
 // ./target/release/frame-omni-bencher
 // v1
 // benchmark
-// pallet
+// pezpallet
 // --runtime
 // target/release/wbuild/people-pezkuwichain-runtime/people_pezkuwichain_runtime.compact.compressed.wasm
 // --pallets