fix: alinhar janela de reabertura do portal com regras do backend

src/components/portal/portal-ticket-detail.tsx

@@ -280,25 +280,35 @@ export function PortalTicketDetail({ ticketId }: PortalTicketDetailProps) {
   const viewerEmail = (session?.user.email ?? machineContext?.assignedUserEmail ?? "")
     .trim()
     .toLowerCase()
-  const reopenDeadline = ticket?.reopenDeadline ?? null
+  const rawReopenDeadline = ticket?.reopenDeadline ?? null
+  const reopenedAt = ticket?.reopenedAt ?? null
   const requesterEmail = (ticket?.requester?.email ?? "").trim().toLowerCase()
   const isRequesterById = Boolean(ticket?.requester?.id && viewerId && ticket.requester.id === viewerId)
   const isRequesterByEmail = Boolean(viewerEmail && requesterEmail && viewerEmail === requesterEmail)
   const isRequester = isRequesterById || isRequesterByEmail
-  const reopenWindowActive = reopenDeadline ? reopenDeadline > Date.now() : false
+
+  const DEFAULT_REOPEN_DAYS = 7
+  const fallbackClosedMs = ticket?.closedAt?.getTime() ?? ticket?.resolvedAt?.getTime() ?? null
+  const inferredDeadline = rawReopenDeadline
+    ? rawReopenDeadline
+    : fallbackClosedMs
+      ? fallbackClosedMs + DEFAULT_REOPEN_DAYS * 24 * 60 * 60 * 1000
+      : null
+  const reopenWindowActive = inferredDeadline ? inferredDeadline > Date.now() : true
   const canReopenTicket =
     !!ticket &&
     ticket.status === "RESOLVED" &&
     reopenWindowActive &&
     (isStaff || viewerRole === "manager" || isRequester)
   const reopenDeadlineLabel = useMemo(() => {
-    if (!reopenDeadline) return null
+    const deadline = inferredDeadline ?? rawReopenDeadline
+    if (!deadline) return null
     try {
-      return new Date(reopenDeadline).toLocaleString("pt-BR")
+      return new Date(deadline).toLocaleString("pt-BR")
     } catch {
       return null
     }
-  }, [reopenDeadline])
+  }, [inferredDeadline, rawReopenDeadline])
 
   const handleReopenTicket = useCallback(async () => {
     if (!ticket || !viewerId) {

src/components/tickets/ticket-summary-header.tsx

@@ -147,20 +147,33 @@ export function TicketSummaryHeader({ ticket }: TicketHeaderProps) {
         : null
   const viewerId = convexUserId ?? null
   const viewerRole = (role ?? "").toLowerCase()
+  const viewerEmail = (session?.user?.email ?? machineContext?.assignedUserEmail ?? "").trim().toLowerCase()
   const [status, setStatus] = useState<TicketStatus>(ticket.status)
-  const reopenDeadline = ticket.reopenDeadline ?? null
+  const rawReopenDeadline = ticket.reopenDeadline ?? null
-  const isRequester = Boolean(ticket.requester?.id && viewerId && ticket.requester.id === viewerId)
+  const fallbackClosedMs = ticket.closedAt?.getTime() ?? ticket.resolvedAt?.getTime() ?? null
-  const reopenWindowActive = reopenDeadline ? reopenDeadline > Date.now() : false
+  const DEFAULT_REOPEN_DAYS = 7
+  const inferredDeadline = rawReopenDeadline
+    ? rawReopenDeadline
+    : fallbackClosedMs
+      ? fallbackClosedMs + DEFAULT_REOPEN_DAYS * 24 * 60 * 60 * 1000
+      : null
+  const isRequesterById = Boolean(ticket.requester?.id && viewerId && ticket.requester.id === viewerId)
+  const isRequesterByEmail = Boolean(
+    viewerEmail && ticket.requester?.email && viewerEmail === ticket.requester.email.trim().toLowerCase(),
+  )
+  const isRequester = isRequesterById || isRequesterByEmail
+  const reopenWindowActive = inferredDeadline ? inferredDeadline > Date.now() : true
   const canReopenTicket =
     status === "RESOLVED" && reopenWindowActive && (isStaff || viewerRole === "manager" || isRequester)
   const reopenDeadlineLabel = useMemo(() => {
-    if (!reopenDeadline) return null
+    const deadline = inferredDeadline ?? rawReopenDeadline
+    if (!deadline) return null
     try {
-      return new Date(reopenDeadline).toLocaleString("pt-BR")
+      return new Date(deadline).toLocaleString("pt-BR")
     } catch {
       return null
     }
-  }, [reopenDeadline])
+  }, [inferredDeadline, rawReopenDeadline])
   const viewerEmail = session?.user?.email ?? machineContext?.assignedUserEmail ?? null
   const viewerAvatar = session?.user?.avatarUrl ?? null
   const viewerAgentMeta = useMemo(