fix(protobuf): handle same package proto type reference

The change improves the field proto type string generation logic by checking if the field's proto class is in the same package as the parent proto class. When they share the same package, only the class name is used instead of the full qualified name (package.className), making the generated proto files cleaner and more idiomatic.

Author: Rainfisher

widget/light-jprotobuf/src/main/java/com/iohao/game/widget/light/protobuf/ProtoJavaAnalyse.java

@@ -209,8 +209,13 @@ private String fieldProtoTypeToString(ProtoJavaField protoJavaField, Class<?> fi
             ProtoJavaRegionKey regionKey = protoJavaParent.getProtoJavaRegionKey();
             ProtoJavaRegion protoJavaRegion = this.getProtoJavaRegion(regionKey);
             protoJavaRegion.addOtherProtoFile(protoJavaFieldType);
-            // 不在同一个文件中
-            fieldProtoType = StrKit.format("{}.{}", filePackage, className);
+            if (Objects.equals(protoJavaParent.getFilePackage(), filePackage)) {
+                // 不在同一个文件夹，但是在同一个包下
+                fieldProtoType = className;
+            } else {
+                // 不在同一个文件中
+                fieldProtoType = StrKit.format("{}.{}", filePackage, className);
+            }
         }
 
         return fieldProtoType;