diff --git a/.github/workflows/ci-cd-web-desktop.yml b/.github/workflows/ci-cd-web-desktop.yml
index 886d0b9..d4f6567 100644
--- a/.github/workflows/ci-cd-web-desktop.yml
+++ b/.github/workflows/ci-cd-web-desktop.yml
@@ -226,6 +226,15 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-nextjs-${{ hashFiles('pnpm-lock.yaml', 'bun.lock') }}-
 
+      - name: Lint check (fail fast before build)
+        run: |
+          cd "$EFFECTIVE_APP_DIR"
+          docker run --rm \
+            -v "$EFFECTIVE_APP_DIR":/app \
+            -w /app \
+            sistema_web:node22-bun \
+            bash -lc "set -euo pipefail; bun install --frozen-lockfile --filter '!appsdesktop'; bun run lint"
+
       - name: Install and build (Next.js)
         env:
           PRISMA_ENGINES_CHECKSUM_IGNORE_MISSING: "1"
diff --git a/src/components/tickets/ticket-chat-history.tsx b/src/components/tickets/ticket-chat-history.tsx
index 99a4695..6ca63ff 100644
--- a/src/components/tickets/ticket-chat-history.tsx
+++ b/src/components/tickets/ticket-chat-history.tsx
@@ -8,6 +8,7 @@ import { api } from "@/convex/_generated/api"
 import type { Id } from "@/convex/_generated/dataModel"
 import { useAuth } from "@/lib/auth-client"
 import { Button } from "@/components/ui/button"
+import { Card, CardContent } from "@/components/ui/card"
 import { Spinner } from "@/components/ui/spinner"
 import { cn } from "@/lib/utils"
 import {
@@ -147,7 +148,7 @@ function ChatSessionCard({ session, isExpanded, onToggle }: { session: ChatSessi
 
   return (
     <div className="rounded-xl border border-slate-200 bg-white overflow-hidden">
-      {/* Header da sessao */}
+      {/* Header da sessão */}
       <button
         onClick={onToggle}
         className="flex w-full items-center justify-between gap-3 px-4 py-3 text-left hover:bg-slate-50 transition-colors"
@@ -196,7 +197,7 @@ function ChatSessionCard({ session, isExpanded, onToggle }: { session: ChatSessi
         <div className="border-t border-slate-100">
           {session.messages.length === 0 ? (
             <div className="flex items-center justify-center py-6 text-sm text-slate-400">
-              Nenhuma mensagem nesta sessao
+              Nenhuma mensagem nesta sessão
             </div>
           ) : (
             <>
@@ -298,7 +299,7 @@ function DayGroupCard({
           <Calendar className="size-4 text-slate-400" />
           <span className="text-sm font-medium text-slate-700">{dayGroup.label}</span>
           <span className="text-xs text-slate-500">
-            ({dayGroup.sessions.length} {dayGroup.sessions.length === 1 ? "sessao" : "sessoes"} - {dayGroup.totalMessages} mensagens)
+            ({dayGroup.sessions.length} {dayGroup.sessions.length === 1 ? "sessão" : "sessões"} - {dayGroup.totalMessages} mensagens)
           </span>
         </div>
         {isExpanded ? (
@@ -308,7 +309,7 @@ function DayGroupCard({
         )}
       </button>
 
-      {/* Sessoes do dia */}
+      {/* Sessões do dia */}
       {isExpanded && (
         <div className="space-y-2 pl-2">
           {dayGroup.sessions.map((session) => (
@@ -405,46 +406,47 @@ export function TicketChatHistory({ ticketId }: ChatHistoryProps) {
     setVisibleDays((prev) => prev + DAYS_PER_PAGE)
   }
 
-  // Nao mostrar se nao ha historico
+  // Não mostrar se não há histórico
   if (!chatHistory || chatHistory.sessions.length === 0) {
     return null
   }
 
   return (
-    <div className="space-y-3">
-      {/* Header */}
-      <div className="flex items-center justify-between">
-        <div className="flex items-center gap-2">
-          <MessageCircle className="size-4 text-slate-500" />
-          <h3 className="text-sm font-semibold text-slate-900">Historico de chat</h3>
+    <Card className="rounded-2xl border border-slate-200 bg-white shadow-sm">
+      <CardContent className="space-y-4 px-4 pb-6">
+        {/* Header */}
+        <div className="flex flex-wrap items-center justify-between gap-3 border-b border-slate-200 pb-4">
+          <div>
+            <h3 className="text-base font-semibold text-neutral-900">Histórico de chat</h3>
+            <p className="text-sm text-neutral-500">
+              {chatHistory.sessions.length} {chatHistory.sessions.length === 1 ? "sessão" : "sessões"} - {chatHistory.totalMessages} mensagens
+            </p>
+          </div>
         </div>
-        <span className="text-xs text-slate-500">
-          {chatHistory.sessions.length} {chatHistory.sessions.length === 1 ? "sessao" : "sessoes"} - {chatHistory.totalMessages} mensagens
-        </span>
-      </div>
 
-      {/* Grupos por dia */}
-      <div className="space-y-2">
-        {displayedDays.map((dayGroup) => (
-          <DayGroupCard
-            key={dayGroup.dateKey}
-            dayGroup={dayGroup}
-            isExpanded={expandedDays.has(dayGroup.dateKey)}
-            onToggle={() => toggleDay(dayGroup.dateKey)}
-            expandedSessions={expandedSessions}
-            onToggleSession={toggleSession}
-          />
-        ))}
-      </div>
-
-      {/* Carregar mais dias */}
-      {hasMoreDays && (
-        <div className="text-center pt-2">
-          <Button variant="ghost" size="sm" onClick={loadMoreDays}>
-            Carregar mais ({dayGroups.length - visibleDays} dias restantes)
-          </Button>
+        {/* Grupos por dia */}
+        <div className="space-y-2">
+          {displayedDays.map((dayGroup) => (
+            <DayGroupCard
+              key={dayGroup.dateKey}
+              dayGroup={dayGroup}
+              isExpanded={expandedDays.has(dayGroup.dateKey)}
+              onToggle={() => toggleDay(dayGroup.dateKey)}
+              expandedSessions={expandedSessions}
+              onToggleSession={toggleSession}
+            />
+          ))}
         </div>
-      )}
-    </div>
+
+        {/* Carregar mais dias */}
+        {hasMoreDays && (
+          <div className="text-center pt-2">
+            <Button variant="ghost" size="sm" onClick={loadMoreDays}>
+              Carregar mais ({dayGroups.length - visibleDays} dias restantes)
+            </Button>
+          </div>
+        )}
+      </CardContent>
+    </Card>
   )
 }