fix(ui): preserve retail item titles and spacing

Carry PublicWeenieDesc material type into the live object model so examination titles use the DAT-authored material prefix. Preserve retail AddItemInfo empty appends and embedded armor separator, restoring the deliberate blank rows between appraisal sections.

Co-authored-by: Codex <codex@openai.com>

src/AcDream.App/UI/Layout/ItemAppraisalReport.cs

@@ -87,6 +87,23 @@ internal sealed class ItemAppraisalReportBuilder
         ItemAppraisalFontStyle style = ItemAppraisalFontStyle.Normal)
         => Add(value, sameParagraph: false, style);
 
+    /// <summary>
+    /// Preserve an empty retail <c>AddItemInfo("", ..., true)</c> append.
+    /// Once text exists this contributes one physical empty row; on an empty
+    /// glyph list retail has no preceding separator to append.
+    /// </summary>
+    public void BlankLine(
+        ItemAppraisalFontStyle style = ItemAppraisalFontStyle.Normal)
+    {
+        if (_fragments.Count == 0)
+            return;
+
+        _fragments.Add(new ItemAppraisalFragment(
+            string.Empty,
+            ItemAppraisalSeparator.Line,
+            style));
+    }
+
     public ItemAppraisalReport Build()
         => _fragments.Count == 0
             ? ItemAppraisalReport.Empty