4754 Fix SpotBugs warnings in FromAi and FromAiResult

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: ivicac

server/libs/ai/ai-tool-api/src/main/java/com/bytechef/ai/tool/FromAi.java

@@ -114,8 +114,8 @@ public TypedValue execute(EvaluationContext context, Object target, Object... ar
                     throw new IllegalArgumentException("fromAi 'required' in map must be a boolean.");
                 }
 
-                if (requiredArg instanceof Boolean requiredBool) {
-                    required = requiredBool;
+                if (requiredArg != null) {
+                    required = (Boolean) requiredArg;
                 }
             }
         }

server/libs/ai/ai-tool-api/src/main/java/com/bytechef/ai/tool/FromAiResult.java

@@ -36,5 +36,7 @@ public record FromAiResult(
     public FromAiResult {
         Objects.requireNonNull(name, "name must not be null");
         Objects.requireNonNull(type, "type must not be null");
+
+        options = options == null ? null : List.copyOf(options);
     }
 }