feat: improve attendance scheduling and API validation

apps/server/src/attendance/dto/attendance.dto.ts

@@ -7,6 +7,9 @@ import {
   IsIn,
   ValidateNested,
   IsNotEmpty,
+  ArrayNotEmpty,
+  Max,
+  Min,
 } from 'class-validator';
 import { Type } from 'class-transformer';
 
@@ -44,6 +47,7 @@ export class AttendanceRecordItem {
 
 export class BatchCreateAttendanceDto {
   @IsArray()
+  @ArrayNotEmpty()
   @ValidateNested({ each: true })
   @Type(() => AttendanceRecordItem)
   records: AttendanceRecordItem[];
@@ -96,11 +100,14 @@ export class QueryDingRawDto {
 
   @IsOptional()
   @IsInt()
+  @Min(1)
   @Type(() => Number)
   page?: number;
 
   @IsOptional()
   @IsInt()
+  @Min(1)
+  @Max(200)
   @Type(() => Number)
   pageSize?: number;
 }
@@ -139,11 +146,14 @@ export class QueryAttendanceRecordsDto {
 
   @IsOptional()
   @IsInt()
+  @Min(1)
   @Type(() => Number)
   page?: number;
 
   @IsOptional()
   @IsInt()
+  @Min(1)
+  @Max(200)
   @Type(() => Number)
   pageSize?: number;
 }
@@ -165,6 +175,22 @@ export class UpdateAttendanceRecordDto {
   remark?: string;
 }
 
+
+export class AttendanceAlertsQueryDto {
+  @IsOptional()
+  @Type(() => Number)
+  @IsInt()
+  @Min(1)
+  @Max(365)
+  days?: number;
+
+  @IsOptional()
+  @Type(() => Number)
+  @IsInt()
+  @Min(1)
+  threshold?: number;
+}
+
 export class AttendanceReportQueryDto {
   @IsOptional()
   @IsInt()