fix: resolve PascalCase generation issue for all-caps strings in ToolScaffolder

dat-was-lib/src/main/java/io/shinhanlife/dat/lib/util/ToolScaffolder.java

@@ -2145,6 +2145,15 @@ public class ToolScaffolder {
         if (str == null || str.isEmpty()) {
             return str;
         }
+        
+        boolean hasLowercase = false;
+        for (char c : str.toCharArray()) {
+            if (Character.isLowerCase(c)) {
+                hasLowercase = true;
+                break;
+            }
+        }
+        
         StringBuilder result = new StringBuilder();
         boolean capitalizeNext = true;
         for (char c : str.toCharArray()) {
@@ -2154,7 +2163,7 @@ public class ToolScaffolder {
                 result.append(Character.toUpperCase(c));
                 capitalizeNext = false;
             } else {
-                result.append(c);
+                result.append(hasLowercase ? c : Character.toLowerCase(c));
             }
         }
         if (result.length() > 0) {