Support for filter by parent document (#6850)

* Backend support for filter by parent document

* parentDocumentId -> documentId

server/routes/api/documents/schema.ts

@@ -153,6 +153,9 @@ export const DocumentsSearchSchema = BaseSchema.extend({
     /** Filter results based on user */
     userId: z.string().uuid().optional(),
 
+    /** Filter results based on content within a document and it's children */
+    documentId: z.string().uuid().optional(),
+
     /**
      * Whether to include archived documents in results
      *