Retorna status da maquina mesmo sem sessao de chat ativa

A query getTicketSession agora sempre retorna machineOnline,
permitindo que o botao de chat seja habilitado corretamente
quando a maquina esta online mas nao ha sessao ativa.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

convex/liveChat.ts

@@ -500,7 +500,7 @@ export const checkMachineUpdates = query({
 // QUERIES (Agente)
 // ============================================
 
-// Listar sessao ativa de um ticket
+// Listar sessao ativa de um ticket e status da maquina
 export const getTicketSession = query({
   args: {
     ticketId: v.id("tickets"),
@@ -517,21 +517,30 @@ export const getTicketSession = query({
       return null
     }
 
+    // Verificar se maquina esta online (sempre, mesmo sem sessao)
+    const machine = ticket.machineId ? await ctx.db.get(ticket.machineId) : null
+    const fiveMinutesAgo = Date.now() - 5 * 60 * 1000
+    const machineOnline = machine?.lastHeartbeatAt && machine.lastHeartbeatAt > fiveMinutesAgo
+
     const session = await ctx.db
       .query("liveChatSessions")
       .withIndex("by_ticket", (q) => q.eq("ticketId", ticketId))
       .filter((q) => q.eq(q.field("status"), "ACTIVE"))
       .first()
 
+    // Sempre retorna status da maquina, mesmo sem sessao ativa
     if (!session) {
-      return null
+      return {
+        sessionId: null,
+        agentId: null,
+        agentName: null,
+        startedAt: null,
+        lastActivityAt: null,
+        unreadByAgent: 0,
+        machineOnline: Boolean(machineOnline),
+      }
     }
 
-    // Verificar se maquina esta online
-    const machine = ticket.machineId ? await ctx.db.get(ticket.machineId) : null
-    const fiveMinutesAgo = Date.now() - 5 * 60 * 1000
-    const machineOnline = machine?.lastHeartbeatAt && machine.lastHeartbeatAt > fiveMinutesAgo
-
     return {
       sessionId: session._id,
       agentId: session.agentId,

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

@@ -322,11 +322,11 @@ export function TicketSummaryHeader({ ticket }: TicketHeaderProps) {
       ? { ticketId: ticket.id as Id<"tickets">, viewerId: convexUserId as Id<"users"> }
       : "skip"
   ) as {
-    sessionId: Id<"liveChatSessions">
-    agentId: Id<"users">
+    sessionId: Id<"liveChatSessions"> | null
+    agentId: Id<"users"> | null
     agentName: string | null
-    startedAt: number
-    lastActivityAt: number
+    startedAt: number | null
+    lastActivityAt: number | null
     unreadByAgent: number
     machineOnline: boolean
   } | null | undefined