Statuskarten via Drag&Drop verschiebbar

Unteraufgaben lassen sich verschieben und bearbeiten

frontend/css/board.css

@@ -609,12 +609,19 @@
   border-bottom: none;
   border-radius: var(--radius-xl) var(--radius-xl) 0 0;
   cursor: grab;
+  user-select: none;
+  -webkit-user-select: none;
 }
 
 .column-header:active {
   cursor: grabbing;
 }
 
+.column-header.dragging,
+.column-header[draggable="true"]:active {
+  cursor: grabbing;
+}
+
 .column-title {
   display: flex;
   align-items: center;
@@ -750,6 +757,24 @@
   transform: rotate(3deg);
 }
 
+/* Column Dragging */
+.column.dragging {
+  opacity: 0.6;
+  transform: scale(0.98);
+  box-shadow: var(--shadow-xl);
+  z-index: 1000;
+}
+
+.column.drag-over-left {
+  border-left: 4px solid var(--primary) !important;
+  margin-left: -2px;
+}
+
+.column.drag-over-right {
+  border-right: 4px solid var(--primary) !important;
+  margin-right: -2px;
+}
+
 .task-card.overdue {
   border-left: 4px solid var(--error);
 }