[fix] DataTransferObject/ib-writer

Author: ReallifeKip

CHANGELOG.md

@@ -1,5 +1,16 @@
 # CHANGELOG
 
+## [4.2.2] - 2026-03-14
+
+### Fixed
+
+- Mark `DataTransferObject::__construct` as `final` to prevent
+  unintended override in subclasses, aligning implementation with
+  original design intent
+- Fix `@desc` annotation handling in ib-writer Markdown mode output:
+  replaced `isset()` check with strict empty string comparison,
+  preventing blank description lines from being written
+
 ## [v4.2.1] - 2026-03-12
 
 ### Refactored

src/CLI/writer/Markdown.php

@@ -103,7 +103,7 @@ public static function contentBlocksGenerate(array $classMap, array $entry): arr
                 }
             }
             $desc = match (true) {
-                isset($propDocs['desc']) => $propDocs['desc'],
+                $propDocs['desc'] !== '' => $propDocs['desc'],
                 default                  => '-'
             };
             $default = '-';

src/Objects/DataTransferObject.php

@@ -21,4 +21,8 @@
  */
 abstract readonly class DataTransferObject extends ImmutableBase
 {
+    final protected function __construct(array $data = [])
+    {
+        return parent::__construct($data);
+    }
 }