refactor(workspace): remove duplicate new note button from top tabs

frontend/src/features/workspace/WorkspaceView.tsx

@@ -1096,19 +1096,6 @@ export const WorkspaceView: React.FC<WorkspaceViewProps> = ({
             {tagsSummary.length > 0 && <span className="ml-1 badge-neutral text-[10px]">{tagsSummary.length}</span>}
           </button>
         </div>
-
-        {/* Right Action buttons */}
-        <div className="flex items-center gap-2">
-          <button
-            type="button"
-            onClick={() => handleCreateDocument('')}
-            className="h-8 px-2.5 bg-canvas hover:bg-panel border border-border border-dashed rounded-btn text-xs text-muted hover:text-main flex items-center gap-1 transition-colors cursor-pointer"
-            title="Neue Notiz anlegen"
-          >
-            <Plus className="w-3.5 h-3.5" />
-            <span>Neue Notiz</span>
-          </button>
-        </div>
       </div>
 
       {/* Main Workspace Split Pane */}