feat: Sync collection (#3368)

* feat: sync collection

* feat: sync collection

* perf: website selector

* update doc

packages/service/core/dataset/schema.ts

@@ -91,17 +91,7 @@ const DatasetSchema = new Schema({
     type: Object
   },
 
-  syncSchedule: {
-    cronString: {
-      type: String
-    },
-    timezone: {
-      type: String
-    }
-  },
-  syncNextTime: {
-    type: Date
-  },
+  autoSync: Boolean,
 
   // abandoned
   externalReadUrl: {
@@ -112,7 +102,6 @@ const DatasetSchema = new Schema({
 
 try {
   DatasetSchema.index({ teamId: 1 });
-  DatasetSchema.index({ syncSchedule: 1, syncNextTime: -1 });
 } catch (error) {
   console.log(error);
 }