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

prdoc/schema_user.json

@@ -111,7 +111,7 @@
 
           {"const": "Runtime Dev",
           "title": "Runtime Dev",
-          "description": "All of those who rely on the runtime. A teyrchain team that is using a pallet. A DApp that is using a pallet. These are people who care about the protocol (WASM), not the meta-protocol (client)."},
+          "description": "All of those who rely on the runtime. A teyrchain team that is using a pezpallet. A DApp that is using a pezpallet. These are people who care about the protocol (WASM), not the meta-protocol (client)."},
 
           {"const": "Node Operator",
           "title": "Node Operator",