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

pezbridges/relays/utils/Cargo.toml

@@ -0,0 +1,45 @@
+[package]
+name = "relay-utils"
+version = "0.1.0"
+authors.workspace = true
+edition.workspace = true
+license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
+repository.workspace = true
+publish = false
+description = "Pezkuwi SDK component: relay utils"
+documentation = "https://docs.rs/relay-utils"
+homepage = { workspace = true }
+
+[lints]
+workspace = true
+
+[dependencies]
+anyhow = { workspace = true, default-features = true }
+async-std = { workspace = true }
+async-trait = { workspace = true }
+backoff = { workspace = true }
+futures = { workspace = true }
+isahc = { workspace = true }
+jsonpath_lib = { workspace = true }
+num-traits = { workspace = true, default-features = true }
+parking_lot = { workspace = true, default-features = true }
+serde_json = { workspace = true, default-features = true }
+pezsp-tracing = { workspace = true, default-features = true }
+sysinfo = { workspace = true }
+thiserror = { workspace = true }
+time = { features = ["formatting", "local-offset", "std"], workspace = true }
+tokio = { features = ["rt"], workspace = true, default-features = true }
+tracing = { workspace = true }
+
+# Bridge dependencies
+pezbp-runtime = { workspace = true, default-features = true }
+
+# Bizinikiwi dependencies
+prometheus-endpoint = { workspace = true, default-features = true }
+pezsp-runtime = { workspace = true, default-features = true }
+
+[features]
+runtime-benchmarks = [
+  "pezbp-runtime/runtime-benchmarks",
+  "pezsp-runtime/runtime-benchmarks",
+]