chore(scripts): align CCIP health/setup scripts with inventory loaders

Made-with: Cursor

scripts/check-fee-requirements.sh

@@ -8,6 +8,7 @@ set -euo pipefail
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
 source "$PROJECT_ROOT/scripts/lib/address-inventory.sh"
+source "$PROJECT_ROOT/scripts/lib/ccip-destinations.sh"
 
 # Colors
 RED='\033[0;31m'
@@ -148,14 +149,9 @@ fi
 # Check 5: Fee Calculation
 log_info ""
 log_info "5. Fee Calculation Check"
-declare -A CHAINS=(
-    ["BSC"]="11344663589394136015"
-    ["Ethereum"]="5009297550715157269"
-)
-
 FEE_CALCULATED=0
-for CHAIN_NAME in "${!CHAINS[@]}"; do
-    SELECTOR="${CHAINS[$CHAIN_NAME]}"
+for CHAIN_NAME in BSC Ethereum; do
+    SELECTOR="$(ccip_destination_field_by_name "$CHAIN_NAME" selector)"
     FEE=$(cast call "$WETH9_BRIDGE" "calculateFee(uint64,uint256)" "$SELECTOR" "$AMOUNT_WEI" --rpc-url "$RPC_URL" 2>/dev/null || echo "0")
     
     if [ "$FEE" != "0" ] && [ -n "$FEE" ]; then