feat(core): add page width property (#8775)

close AF-1655

packages/common/infra/src/modules/db/schema/schema.ts

@@ -16,6 +16,7 @@ export const AFFiNE_WORKSPACE_DB_SCHEMA = {
     primaryMode: f.string().optional(),
     edgelessColorTheme: f.string().optional(),
     journal: f.string().optional(),
+    pageWidth: f.string().optional(),
   }),
   docCustomPropertyInfo: {
     id: f.string().primaryKey().optional().default(nanoid),

packages/common/infra/src/modules/doc/constants.ts

@@ -45,4 +45,10 @@ export const BUILT_IN_CUSTOM_PROPERTY_TYPE = [
     show: 'always-hide',
     index: 'a0000007',
   },
+  {
+    id: 'pageWidth',
+    type: 'pageWidth',
+    show: 'always-hide',
+    index: 'a0000008',
+  },
 ] as DocCustomPropertyInfo[];