fix

frontend/src/desktop/DesktopDocumentCard.jsx

@@ -107,7 +107,6 @@ const DesktopDocumentCard = ({
                   draggable
                   data-desk-tag-chip="true"
                   onPointerDownCapture={(event) => {
-                    event.stopPropagation();
                     onDocTagPointerDown(event, doc, tag);
                   }}
                   onDragStart={(event) => onDocTagDragStart(event, doc, tag)}

frontend/src/desktop/DesktopWorkspace.css

@@ -260,7 +260,6 @@
 
 .tag-chip--draggable.is-drag-hidden {
   opacity: 0.4;
-  pointer-events: none;
 }
 
 .desk-item__tags .tag-chip {

frontend/src/desktop/tags/useDeskTagInteractions.js

@@ -146,7 +146,6 @@ export const useDeskTagInteractions = ({
   );
 
   const handleDocTagPointerDown = useCallback((event, doc, tag) => {
-    event.stopPropagation();
     if (!doc || !tag) {
       pendingDocTagDragRef.current = null;
       return;
@@ -263,7 +262,6 @@ export const useDeskTagInteractions = ({
       if (!event?.dataTransfer || !doc || !tag) {
         return;
       }
-      event.stopPropagation();
       event.dataTransfer.effectAllowed = 'move';
       writeTagTransferData(event.dataTransfer, tag, doc.id);
 

frontend/src/desktop/useDocumentDrag.js

@@ -8,6 +8,14 @@ const DRAG_HYSTERESIS_PX = 4;
 const DRAG_HYSTERESIS_SQUARED = DRAG_HYSTERESIS_PX * DRAG_HYSTERESIS_PX;
 const EDGE_COLLISION_THRESHOLD = 0.5;
 
+const getEventTargetElement = (event) => {
+  if (typeof Element === 'undefined' || !event) {
+    return null;
+  }
+  const candidate = event.target || (event.nativeEvent ? event.nativeEvent.target : null);
+  return candidate instanceof Element ? candidate : null;
+};
+
 const useDocumentDrag = (options = {}) => {
   const {
     engine,
@@ -139,6 +147,10 @@ const useDocumentDrag = (options = {}) => {
 
   const handlePointerDown = useCallback(
     (event, docIdInput, options = {}) => {
+      const targetElement = getEventTargetElement(event);
+      if (targetElement && typeof targetElement.closest === 'function' && targetElement.closest('[data-desk-tag-chip="true"]')) {
+        return;
+      }
       preventAll(event);
 
       const docId = docIdInput != null ? docIdInput : null;