Allow bookmarks in periodic query notification

modules/restapi/src/main/resources/docspell-openapi.yml

@@ -8037,12 +8037,12 @@ extraSchemas:
 
   PeriodicQuerySettings:
     description: |
-      Settings for the periodc-query task.
+      Settings for the periodc-query task. At least one of `query` and
+      `bookmark` is required!
     required:
       - id
       - enabled
       - channel
-      - query
       - schedule
     properties:
       id:
@@ -8065,6 +8065,10 @@ extraSchemas:
       query:
         type: string
         format: itemquery
+      bookmark:
+        type: string
+        description: |
+          Name or ID of bookmark to use. 
 
   PeriodicDueItemsSettings:
     description: |

modules/restapi/src/main/scala/docspell/restapi/model/PeriodicQuerySettings.scala

@@ -21,7 +21,8 @@ final case class PeriodicQuerySettings(
     summary: Option[String],
     enabled: Boolean,
     channel: NotificationChannel,
-    query: ItemQuery,
+    query: Option[ItemQuery],
+    bookmark: Option[String],
     schedule: CalEvent
 ) {}