feat(activities): split customer column, wider search, custom activity types with type-specific fields

- Table: separate assignee and customer columns; search by assignee and activity type
- ActivityTypeDef model with per-type field definitions (text, select, checklist, participants, ...)
- Default types incl. meeting subject/participants and task checklist; admins manage types
- Participants see activities in their lists and get notified

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

apps/api/src/activities/dto.ts

@@ -6,6 +6,7 @@ import {
   IsDateString,
   IsIn,
   IsInt,
+  IsObject,
   IsOptional,
   IsString,
   Max,
@@ -14,6 +15,8 @@ import {
   MinLength,
   ValidateIf,
 } from 'class-validator';
+import type { ActivityFieldDef, ActivityFieldValues, ActivityTypeIcon } from '@mento/shared';
+import { ACTIVITY_TYPE_ICONS } from '@mento/shared';
 
 /** تکه‌های JSON از ایمپورت مرورگرگرا */
 export class ImportActivityRowsDto {
@@ -66,6 +69,11 @@ export class ListActivitiesQueryDto {
   @IsString()
   assigneeId?: string;
 
+  /** نوع فعالیت (تعریف‌شده در سازمان) */
+  @IsOptional()
+  @IsString()
+  typeDefId?: string;
+
   /** شناسهٔ مرحله یا 'all' — حالت تب/کانبان مراحل */
   @IsOptional()
   @IsString()
@@ -151,6 +159,66 @@ export class MoveActivityStageDto {
   stageId!: string;
 }
 
+/** محتوای fields در سرویس بر اساس تعریف نوع اعتبارسنجی می‌شود */
+export class CreateActivityTypeDto {
+  @IsString()
+  @MinLength(1)
+  @MaxLength(60)
+  name!: string;
+
+  @IsOptional()
+  @IsIn(ACTIVITY_TYPES)
+  baseType?: (typeof ACTIVITY_TYPES)[number];
+
+  @IsOptional()
+  @IsIn(ACTIVITY_TYPE_ICONS)
+  icon?: ActivityTypeIcon;
+
+  @IsOptional()
+  @IsIn(STAGE_COLORS)
+  color?: (typeof STAGE_COLORS)[number];
+
+  @IsOptional()
+  @IsArray()
+  @Allow()
+  fields?: ActivityFieldDef[];
+}
+
+export class UpdateActivityTypeDto {
+  @IsOptional()
+  @IsString()
+  @MinLength(1)
+  @MaxLength(60)
+  name?: string;
+
+  @IsOptional()
+  @IsIn(ACTIVITY_TYPES)
+  baseType?: (typeof ACTIVITY_TYPES)[number];
+
+  @IsOptional()
+  @IsIn(ACTIVITY_TYPE_ICONS)
+  icon?: ActivityTypeIcon;
+
+  @IsOptional()
+  @IsIn(STAGE_COLORS)
+  color?: (typeof STAGE_COLORS)[number];
+
+  @IsOptional()
+  @IsArray()
+  @Allow()
+  fields?: ActivityFieldDef[];
+
+  @IsOptional()
+  @IsBoolean()
+  isActive?: boolean;
+}
+
+export class ReorderActivityTypesDto {
+  @IsArray()
+  @IsString({ each: true })
+  typeIds!: string[];
+}
+
 export class CreateActivityDto {
   @IsString()
   @MinLength(2)
@@ -166,6 +234,15 @@ export class CreateActivityDto {
   @IsIn(ACTIVITY_TYPES)
   type?: (typeof ACTIVITY_TYPES)[number];
 
+  @IsOptional()
+  @ValidateIf((_, v) => v !== '' && v != null)
+  @IsString()
+  typeDefId?: string | null;
+
+  @IsOptional()
+  @IsObject()
+  fields?: ActivityFieldValues;
+
   @IsOptional()
   @IsIn(ACTIVITY_PRIORITIES)
   priority?: (typeof ACTIVITY_PRIORITIES)[number];
@@ -242,6 +319,15 @@ export class UpdateActivityDto {
   @IsIn(ACTIVITY_TYPES)
   type?: (typeof ACTIVITY_TYPES)[number];
 
+  @IsOptional()
+  @ValidateIf((_, v) => v !== '' && v != null)
+  @IsString()
+  typeDefId?: string | null;
+
+  @IsOptional()
+  @IsObject()
+  fields?: ActivityFieldValues;
+
   @IsOptional()
   @IsIn(ACTIVITY_STATUSES)
   status?: (typeof ACTIVITY_STATUSES)[number];