refactor: simplify ticket lifecycle flow, remove processing and completed state

src/app/(modules)/ticket/[ticketId]/components/TicketHistoryCard.tsx

@@ -7,22 +7,19 @@ import { cn } from '@/lib/utils';
 import type { TicketDetail, TicketHistoryItem, TicketStatus } from '@/types';
 import { formatDate } from '@/utils/date';
 
-import { formatTicketStatus } from '../../components/TicketStatusBadge';
-
 function getActorLabel(item: TicketHistoryItem) {
   return item.actor?.name || item.actor?.email || 'System';
 }
 
 function getLifecycleTitle(status: TicketStatus) {
   const titles: Record<TicketStatus, string> = {
-    processing: 'Incident Ticket Created',
     unassigned: 'Awaiting Assignment',
     assigned: 'Dispatched to Maintenance',
     under_review: 'Maintenance Finalized',
     closed: 'Ticket Closed',
   };
 
-  return titles[status] ?? formatTicketStatus(status);
+  return titles[status];
 }
 
 function HistoryEntry({
@@ -39,7 +36,7 @@ function HistoryEntry({
       {!isLast ? (
         <span
           aria-hidden
-          className="absolute top-6 left-[11px] h-[calc(100%-10px)] w-px bg-border"
+          className="absolute top-6 left-2.75 h-[calc(100%-10px)] w-px bg-border"
         />
       ) : null}
 
@@ -56,7 +53,7 @@ function HistoryEntry({
           className={cn(
             'size-2 rounded-full bg-primary',
             isClosed &&
-              'h-1.5 w-2.5 rotate-[-45deg] rounded-none border-b-2 border-l-2 border-current bg-transparent',
+              'h-1.5 w-2.5 -rotate-45 rounded-none border-b-2 border-l-2 border-current bg-transparent',
           )}
         />
       </span>