feat(sprint): edit-icoon op taak in Taken-kolom

Hover-zichtbaar ✎-icoon rechts uitgelijnd op iedere taak-rij; opent dezelfde
edit-dialog als een rij-klik (visuele cue, consistent met PBI/story-rijen).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

components/sprint/task-list.tsx

@@ -11,6 +11,7 @@ import {
   sortableKeyboardCoordinates,
 } from '@dnd-kit/sortable'
 import { CSS } from '@dnd-kit/utilities'
+import { Pencil } from 'lucide-react'
 import { toast } from 'sonner'
 import { Button } from '@/components/ui/button'
 import { Badge } from '@/components/ui/badge'
@@ -120,6 +121,16 @@ function SortableTaskRow({
             </button>
           </div>
         </div>
+        <DemoTooltip show={isDemo}>
+          <button
+            onClick={(e) => { e.stopPropagation(); if (!isDemo) onEdit() }}
+            className="opacity-0 group-hover:opacity-100 text-muted-foreground hover:text-foreground p-0.5 rounded shrink-0 mt-0.5 disabled:opacity-40 disabled:cursor-not-allowed"
+            aria-label="Bewerk taak"
+            disabled={isDemo}
+          >
+            <Pencil size={14} />
+          </button>
+        </DemoTooltip>
       </div>
     </div>
   )