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/web/src/components/activities/ActivitiesKanban.vue

@@ -5,10 +5,10 @@ import axios from 'axios';
 import type {
   ActivityDto,
   ActivityStageDto,
-  ActivityType,
   PaginatedResponse,
 } from '@mento/shared';
 import { api } from '@/lib/api';
+import { activityTypeView } from '@/lib/activity-types';
 import { calendarDaysBetween, formatClockFa, formatJalaliDay, startOfLocalDay, toFaDigits } from '@/lib/jalali';
 import PipelineBoard from '@/components/pipeline/PipelineBoard.vue';
 import DealCardOverlay from '@/components/pipeline/DealCardOverlay.vue';
@@ -59,13 +59,6 @@ const moving = ref(false);
 const stageBusy = ref(false);
 const localOrder = ref<string[] | null>(null);
 
-const typeLabel: Record<ActivityType, string> = {
-  call: 'تماس',
-  meeting: 'جلسه',
-  task: 'وظیفه',
-  note: 'پیام',
-};
-
 const KIND_BADGE: Record<ActivityStageDto['kind'], string | undefined> = {
   open: undefined,
   done: 'انجام‌شده',
@@ -109,7 +102,7 @@ function toCard(item: ActivityDto, stageId: string): PipelineDeal {
   return {
     id: item.id,
     title: item.title,
-    description: [typeLabel[item.type], party].filter(Boolean).join(' · '),
+    description: [activityTypeView(item).name, party].filter(Boolean).join(' · '),
     amount: null,
     date: dateText(item),
     initials: initialsFromTitle(party || item.title),