perf: mongo index;fix: loading status and abort chat, system prompt empty

src/service/models/bill.ts

@@ -43,4 +43,11 @@ const BillSchema = new Schema({
   }
 });
 
+try {
+  BillSchema.index({ time: -1 });
+  BillSchema.index({ userId: 1 });
+} catch (error) {
+  error;
+}
+
 export const Bill: Model<BillType> = models['bill'] || model('bill', BillSchema);

src/service/models/model.ts

@@ -82,4 +82,11 @@ const ModelSchema = new Schema({
   }
 });
 
+try {
+  ModelSchema.index({ updateTime: -1 });
+  ModelSchema.index({ 'share.collection': -1 });
+} catch (error) {
+  error;
+}
+
 export const Model: MongoModel<ModelType> = models['model'] || model('model', ModelSchema);