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/assets/asset-hub-zagros/src/weights/pezpallet_preimage.rs

@@ -25,14 +25,14 @@
 // Executed Command:
 // ./target/production/pezkuwi
 // benchmark
-// pallet
+// pezpallet
 // --chain=zagros-dev
 // --steps=50
 // --repeat=20
 // --no-storage-info
 // --no-median-slopes
 // --no-min-squares
-// --pallet=pezpallet_preimage
+// --pezpallet=pezpallet_preimage
 // --extrinsic=*
 // --execution=wasm
 // --wasm-execution=compiled