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/testing/scripts/sync-exit.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+set -e
+
+# every network adds a char to the file, let's remove ours
+truncate -s -1 $TEST_FOLDER/exit-sync
+
+# when all chars are removed, then our test is done
+while true
+do
+    if [ `stat --printf="%s" $TEST_FOLDER/exit-sync` -eq 0 ]; then
+        exit
+    fi
+    sleep 100
+done