fix(web): mirrored handle teardrops — end handle points right

web/static/input.css

@@ -946,13 +946,14 @@
     background-color: rgba(153, 27, 27, 0.6);
   }
   /* Highlight extent-adjustment handles (objective 9): teardrop dots that
-     sit on the range boundary; the stem points at the text line. */
+     sit on the range boundary; mirrored pair — start points left, end
+     points right. */
   .adjust-handle {
     position: fixed;
     width: 26px;
     height: 26px;
     border-radius: 50% 50% 50% 0;
-    transform: rotate(-45deg);
+    transform: rotate(45deg);
     background: #3b82f6;
     border: 2px solid #ffffff;
     box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
@@ -962,7 +963,7 @@
   }
   .adjust-handle[data-which="end"] {
     border-radius: 50% 50% 0 50%;
-    transform: rotate(135deg);
+    transform: rotate(-45deg);
   }
   .adjust-handle[data-dragging] {
     cursor: grabbing;