Title row: drop h1 flex-grow so button sits right next to the title

static/index.html

@@ -102,7 +102,9 @@
   .title-row {
     display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
   }
-  .title-row h1 { flex: 1 1 auto; min-width: 0; }
+  /* No flex-grow on the h1 — keep its intrinsic width so the button sits
+     immediately to its right rather than pushed to the far edge. */
+  .title-row h1 { flex: 0 1 auto; min-width: 0; }
   .title-row .btn-primary { flex: 0 0 auto; }
 
   /* --- Layout --- */