fix(OUT-3501): fix deleted parent comment avatar size mismatch

The CopilotAvatar icon branch rendered a default MUI Avatar (40x40px)
while normal comment avatars use AssemblyAvatar xs size (20x20px).
This caused deleted parent comments to appear out of place. Map the
size prop to correct pixel dimensions for the icon avatar variant.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: SandipBajracharya

src/app/detail/ui/Comments.tsx

@@ -1,13 +1,13 @@
 import { CopilotAvatar } from '@/components/atoms/CopilotAvatar'
 import { CommentCard } from '@/components/cards/CommentCard'
-import { TrashIcon2 } from '@/icons'
 import { selectTaskBoard } from '@/redux/features/taskBoardSlice'
 import { CreateComment } from '@/types/dto/comment.dto'
 import { OptimisticUpdate } from '@/utils/optimisticCommentUtils'
 import { LogResponse } from '@api/activity-logs/schemas/LogResponseSchema'
 import { Stack } from '@mui/material'
 import { useSelector } from 'react-redux'
 import { VerticalLine } from './styledComponent'
+import { Icon } from 'copilot-design-system'
 
 interface Prop {
   token: string
@@ -32,7 +32,7 @@ export const Comments = ({ token, comment, createComment, deleteComment, task_id
           style={{
             marginTop: '8px',
           }}
-          icon={comment.details.deletedAt ? <TrashIcon2 /> : undefined}
+          icon={comment.details.deletedAt ? <Icon icon="Trash" width={10} height={10} /> : undefined}
         />
 
         <CommentCard

src/components/atoms/CopilotAvatar.tsx

@@ -33,8 +33,14 @@ export const CopilotAvatar = ({ currentAssignee, alt, size = 'sm', icon, classNa
   }, [currentAssignee?.name, currentAssignee?.familyName, currentAssignee?.givenName])
 
   if (icon) {
+    const sizeMap: Record<string, number> = { '3xs': 12, '2xs': 16, xs: 20 }
+    const dimension = sizeMap[size]
     return (
-      <Avatar sx={avatarSx} variant={avatarVariant}>
+      <Avatar
+        sx={{ ...avatarSx, ...(dimension ? { width: dimension, height: dimension } : {}) }}
+        variant={avatarVariant}
+        style={style}
+      >
         {icon}
       </Avatar>
     )