fix: enable resize/rotate controls on single-click object selection

In setMode('select'), explicitly set hasControls, hasBorders, and evented
on all objects. In drawing modes, disable selectable/evented to prevent
accidental interaction. Fixes controls only appearing on multi-select drag.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

client/static/js/annotation-editor.js

@@ -526,12 +526,19 @@ function annotationEditor() {
         this.canvas.defaultCursor = 'default';
         this.canvas.forEachObject(function (o) {
           o.selectable = true;
+          o.evented = true;
+          o.hasControls = true;
+          o.hasBorders = true;
         });
       } else {
-        // marker, arrow, rect
+        // marker, arrow, rect — disable object interaction during drawing
         this.canvas.selection = false;
         this.canvas.defaultCursor = 'crosshair';
         this.canvas.discardActiveObject();
+        this.canvas.forEachObject(function (o) {
+          o.selectable = false;
+          o.evented = false;
+        });
       }
 
       this.canvas.renderAll();

client/templates/maker/task_drawing.html

@@ -353,7 +353,7 @@
 <script>
   pdfjsLib.GlobalWorkerOptions.workerSrc = 'https://cdnjs.cloudflare.com/ajax/libs/pdf.js/3.11.174/pdf.worker.min.js';
 </script>
-<script src="{{ url_for('static', filename='js/annotation-editor.js') }}?v=9"></script>
+<script src="{{ url_for('static', filename='js/annotation-editor.js') }}?v=10"></script>
 <script>
 function taskDrawing() {
   const taskData = window.__taskData || {};