fix: version handling in protocol-testing

protocol-testing/entrypoint.sh

@@ -1,17 +1,34 @@
 #!/bin/bash
 set -e
 
+# Check arguments
 if [ "$#" -lt 1 ]; then
 	echo "Usage: $0 protocol1[=filter] [protocol2 ...] or \"$0 'protocol1[=filter] protocol2'\""
 	exit 1
 fi
-
 if [ "$#" -eq 1 ] && [[ "$1" == *" "* ]]; then
 	IFS=' ' read -r -a args <<< "$1"
 else
 	args=("$@")
 fi
 
+# Check required binaries
+errors=()
+for bin in tycho-indexer tycho-protocol-sdk substreams forge cast; do
+    if command -v "$bin" >/dev/null 2>&1; then
+        "$bin" --version || echo "$bin does not support --version"
+    else
+        errors+=("Binary '$bin' not found in PATH")
+    fi
+done
+if [ "${#errors[@]}" -ne 0 ]; then
+    for err in "${errors[@]}"; do
+        echo "$err"
+    done
+    exit 1
+fi
+
+# Run tests
 for test in "${args[@]}"; do
 	protocol="${test%%=*}"
 	filter="${test#*=}"