feat(mcp): update server with hierarchy support, batch operations, and tree view

mcp-server/N8N-EXAMPLES.md

@@ -409,6 +409,29 @@ All examples assume an MCP Client node configured with Streamable HTTP and `x-ap
 }
 ```
 
+### Create a sub-notebook (hierarchical)
+
+```json
+{
+  "tool": "create_notebook",
+  "arguments": {
+    "name": "Project Alpha",
+    "icon": "🚀",
+    "color": "#10B981",
+    "parentId": "{{ $json.parentNotebookId }}"
+  }
+}
+```
+
+### Get notebook hierarchy (tree view)
+
+```json
+{
+  "tool": "get_notebook_hierarchy",
+  "arguments": {}
+}
+```
+
 ### Delete a notebook (notes go to Inbox)
 
 ```json
@@ -422,6 +445,33 @@ All examples assume an MCP Client node configured with Streamable HTTP and `x-ap
 
 ---
 
+## Batch Operations
+
+### Batch move notes to a notebook
+
+```json
+{
+  "tool": "batch_move_notes",
+  "arguments": {
+    "ids": ["{{ $json.noteId1 }}", "{{ $json.noteId2 }}", "{{ $json.noteId3 }}"],
+    "notebookId": "{{ $json.targetNotebookId }}"
+  }
+}
+```
+
+### Batch delete notes
+
+```json
+{
+  "tool": "batch_delete_notes",
+  "arguments": {
+    "ids": ["{{ $json.noteId1 }}", "{{ $json.noteId2 }}"]
+  }
+}
+```
+
+---
+
 ## Labels
 
 ### Create a label inside a notebook