Add Docker Compose config validation test

tests/run.sh

@@ -39,6 +39,10 @@ echo "========================================================================"
 "$ROOT/test_templates.sh" || failures=$((failures + 1))
 echo ""
 
+echo "========================================================================"
+"$ROOT/test_compose_config.sh" || failures=$((failures + 1))
+echo ""
+
 echo "==================================="
 if [ "$failures" -eq 0 ]; then
     echo "  All tests passed!"

tests/test_compose_config.sh

@@ -0,0 +1,43 @@
+#!/bin/bash
+set -euo pipefail
+
+ROOT="$(dirname "$(realpath "$0")")/.."
+pass=0
+fail=0
+
+compose_cmd=""
+if command -v docker &>/dev/null && docker compose version &>/dev/null 2>&1; then
+    compose_cmd="docker compose"
+elif command -v docker-compose &>/dev/null; then
+    compose_cmd="docker-compose"
+fi
+
+test_compose_config() {
+    local file=$1
+
+    if [ -z "$compose_cmd" ]; then
+        echo "  SKIP  $file (no docker compose available)"
+        return
+    fi
+
+    if $compose_cmd -f "$file" config -q 2>/dev/null; then
+        echo "  PASS  $file"
+        pass=$((pass + 1))
+    else
+        echo "  FAIL  $file"
+        fail=$((fail + 1))
+    fi
+}
+
+echo "=== Docker Compose Config Validation ==="
+
+test_compose_config "$ROOT/compose.yml"
+
+while IFS= read -r f; do
+    [ "$f" = "$ROOT/compose.yml" ] && continue
+    [ -f "$f" ] && test_compose_config "$f"
+done < <(find "$ROOT" -maxdepth 1 -name 'compose*.yml' | sort)
+
+echo "---"
+echo "Passed: $pass  Failed: $fail"
+[ "$fail" -eq 0 ]