fix: position right-side label in margin zone (1.65cm x 23.42cm, right:-2.54cm)

app/static/css/print.css

@@ -89,15 +89,18 @@ body {
 }
 
 /* ------------------------------
-   DECORATIVE RIGHT-SIDE STRIP
-   Kept fixed but NOT outside page box
+   DECORATIVE RIGHT-SIDE LABEL
+   position:fixed repeats on every page.
+   right:-2.54cm pushes into the right margin zone.
+   On cover / fullpage pages (page:cover → @page cover margin:0)
+   the label is pushed off-page automatically.
    ------------------------------ */
 .hb-right-label {
     position: fixed;
     top: 0;
-    right: 0;
-    width: 0.95cm;
-    height: 100%;
+    right: -2.54cm;
+    width: 1.65cm;
+    height: 23.42cm;
     z-index: 0;
     pointer-events: none;
     overflow: hidden;