feat(workspace): bring an extracted note back into the bullet

A bullet that is only a link to a note (as left by /extract) gets a
"Notiz zurückholen" button. POST /documents/{id}/inline returns the
linked note's blocks with fresh ids and trashes the note; the editor
puts the title back as text and inserts the blocks as an own edit, so
Strg+Z restores the link and the note. Only own notes that no other
note links to. Release 0.52.0.

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

frontend/src/features/workspace/OutlinerTree.tsx

@@ -20,6 +20,7 @@ export interface OutlinerTreeProps {
   levelOffset?: number;
   onZoomBlock?: (blockId: string) => void;
   onExtractBlock?: (blockId: string) => void;
+  onInlineBlock?: (blockId: string) => void;
   onUpdateBlock: (updated: DocumentBlock, immediate?: boolean) => void;
   onUpdateBlocks?: (updated: DocumentBlock[]) => void;
   onCreateBlock: (newBlock: DocumentBlock, afterBlockId?: string) => void;
@@ -54,6 +55,7 @@ export const OutlinerTree = forwardRef<OutlinerTreeHandle, OutlinerTreeProps>(({
   levelOffset = 0,
   onZoomBlock,
   onExtractBlock,
+  onInlineBlock,
   onUpdateBlock,
   onUpdateBlocks,
   onCreateBlock,
@@ -933,6 +935,7 @@ export const OutlinerTree = forwardRef<OutlinerTreeHandle, OutlinerTreeProps>(({
             levelOffset={levelOffset}
             onZoomBlock={onZoomBlock}
             onExtractBlock={onExtractBlock}
+            onInlineBlock={onInlineBlock}
             onUpdateBlock={onUpdateBlock}
             onCreateBlockBelow={handleCreateBlockBelow}
             onPasteMultiLines={handlePasteMultiLines}