Import large activity Excel in the browser via JSON chunks to avoid 502.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/api/src/activities/dto.ts

@@ -1,5 +1,6 @@
 import { Type } from 'class-transformer';
 import {
+  Allow,
   IsArray,
   IsBoolean,
   IsDateString,
@@ -14,6 +15,27 @@ import {
   ValidateIf,
 } from 'class-validator';
 
+/** تکه‌های JSON از ایمپورت مرورگرگرا */
+export class ImportActivityRowsDto {
+  @IsArray()
+  @Allow()
+  rows!: Array<Record<string, string>>;
+
+  @Type(() => Number)
+  @IsInt()
+  @Min(0)
+  offset!: number;
+
+  @Type(() => Number)
+  @IsInt()
+  @Min(0)
+  total!: number;
+
+  @IsOptional()
+  @IsString()
+  sessionId?: string;
+}
+
 const ACTIVITY_TYPES = ['call', 'meeting', 'task', 'note'] as const;
 const ACTIVITY_STATUSES = ['open', 'done', 'canceled'] as const;
 const ACTIVITY_PRIORITIES = ['very_low', 'low', 'medium', 'high', 'very_high'] as const;