feat: select text across bullets and delete it like a text editor; Ctrl+Z in tasks; notes and lists without emoji; custom done columns complete tasks

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

frontend/src/features/workspace/DocumentEditor.tsx

@@ -25,6 +25,7 @@ import {
   Redo2,
   MoreHorizontal,
   CalendarDays,
+  SmilePlus,
 } from 'lucide-react';
 import { Document, DocumentBlock, User } from '../../lib/types';
 import { api } from '../../lib/api';
@@ -708,6 +709,19 @@ export const DocumentEditor: React.FC<DocumentEditorProps> = ({
     [docId, canEdit, applyLocalBlocks]
   );
 
+  // A selection over several bullets was deleted (OutlinerTree): one change, so Strg+Z undoes it at once
+  const handleReplaceRange = useCallback(
+    (first: DocumentBlock, deleteIds: string[], movedChildren: DocumentBlock[]) => {
+      if (!canEdit) return;
+      const changed = new Map([first, ...movedChildren].map((b) => [b.id, b]));
+      const gone = new Set(deleteIds);
+      applyLocalBlocks((prev) =>
+        ensureNonEmptyBlocks(docId, prev.filter((b) => !gone.has(b.id)).map((b) => changed.get(b.id) || b))
+      );
+    },
+    [docId, canEdit, applyLocalBlocks]
+  );
+
   // Swaps a bullet (with its children) with the previous or next one on the same level, within the same
   // parent. By id, not by index, so it also works while zoomed into a branch (the tree then sees a slice).
   const handleMoveSibling = useCallback(
@@ -1254,6 +1268,7 @@ export const DocumentEditor: React.FC<DocumentEditorProps> = ({
                 onCreateBlock={handleCreateBlock}
                 onInsertBlocks={handleInsertBlocks}
                 onDeleteBlock={handleDeleteBlock}
+                onReplaceRange={handleReplaceRange}
                 onMoveBlock={handleMoveBlock}
                 onMoveSibling={handleMoveSibling}
                 onOpenTask={onOpenTask}
@@ -1286,12 +1301,15 @@ export const DocumentEditor: React.FC<DocumentEditorProps> = ({
                   }`}
                   title={inJournal ? undefined : 'Icon ändern'}
                 >
-                  {/* Journal days: a quiet calendar in the theme's text colour instead of the colourful emoji */}
+                  {/* Journal days: a quiet calendar in the theme's text colour instead of the colourful emoji;
+                      a note without an icon shows a faint "choose icon" to editors only */}
                   {inJournal ? (
                     <CalendarDays className="w-6 h-6 sm:w-7 sm:h-7 text-muted" strokeWidth={1.75} />
-                  ) : (
-                    doc?.icon || '🗒️'
-                  )}
+                  ) : doc?.icon ? (
+                    doc.icon
+                  ) : canEdit ? (
+                    <SmilePlus className="w-6 h-6 sm:w-7 sm:h-7 text-faint" strokeWidth={1.5} aria-label="Icon wählen" />
+                  ) : null}
                 </button>
                 {showEmojiPicker && canEdit && (
                   <EmojiPickerModal
@@ -1352,6 +1370,7 @@ export const DocumentEditor: React.FC<DocumentEditorProps> = ({
               onCreateBlock={handleCreateBlock}
               onInsertBlocks={handleInsertBlocks}
               onDeleteBlock={handleDeleteBlock}
+                onReplaceRange={handleReplaceRange}
               onMoveBlock={handleMoveBlock}
                 onMoveSibling={handleMoveSibling}
               onOpenTask={onOpenTask}