Fix drop to tag effectAllowed compatibility and update note tag state

src/components/EvercloneWorkspace.tsx

@@ -1246,6 +1246,11 @@ export default function EvercloneWorkspace() {
         if (activeNote?.id === noteId) {
           setActiveNote(updated);
         }
+        setNotes((prev) =>
+          prev.map((n) =>
+            n.id === noteId ? { ...n, tags: updated.tags } : n
+          )
+        );
         await fetchSidebar();
       }
     } catch (e) {
@@ -2789,7 +2794,7 @@ export default function EvercloneWorkspace() {
                           onDragStart={(e) => {
                             e.dataTransfer.setData('text/everclone-note-id', n.id);
                             e.dataTransfer.setData('text/plain', n.id);
-                            e.dataTransfer.effectAllowed = 'move';
+                            e.dataTransfer.effectAllowed = 'copyMove';
                           }}
                           onClick={() => openNoteInEditor(n.id)}
                           className={`group/card cursor-pointer rounded-xl border transition-colors duration-150 flex flex-col overflow-hidden shadow-xs ${
@@ -2958,7 +2963,7 @@ export default function EvercloneWorkspace() {
                     onDragStart={(e) => {
                       e.dataTransfer.setData('text/everclone-note-id', n.id);
                       e.dataTransfer.setData('text/plain', n.id);
-                      e.dataTransfer.effectAllowed = 'move';
+                      e.dataTransfer.effectAllowed = 'copyMove';
                     }}
                     onClick={() => openNoteInEditor(n.id)}
                     style={{
@@ -4216,7 +4221,7 @@ function SidebarTagRow({
       onDragOver={(e) => {
         if (onDropNote) {
           e.preventDefault();
-          e.dataTransfer.dropEffect = 'copy';
+          e.dataTransfer.dropEffect = 'move';
           if (!dragOver) setDragOver(true);
         }
       }}