chore(scripts): use load_explorer_runtime_env + address-inventory helper

Align remaining shell scripts with shared env loading (no direct .env source).

Made-with: Cursor

scripts/check-block-explorer-tx.sh

@@ -5,9 +5,11 @@
 set -euo pipefail
 
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-cd "$SCRIPT_DIR/.."
+PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
+source "$PROJECT_ROOT/scripts/lib/address-inventory.sh"
+cd "$PROJECT_ROOT"
 
-source .env 2>/dev/null || true
+load_explorer_runtime_env
 
 RPC_URL="${RPC_URL_138:-http://192.168.11.250:8545}"
 EXPLORER_URL="${EXPLORER_URL:-https://explorer.d-bis.org}"
@@ -126,4 +128,3 @@ if [ -n "${TX_HASH:-}" ]; then
     echo "  Transaction: $EXPLORER_URL/tx/$TX_HASH"
 fi
 echo ""
-