Match desktop chat layout with web version

- Change agent icon from Headphones to MessageCircle
- Adjust avatar size to size-7 and icons to size-3.5
- Reposition attach button next to send button (textarea -> attach -> send)
- Add Online indicator in header with animated green dot
- Implement minimized state (collapsed view like web)
- Hide web chat widget when running in Tauri context (avoid duplicate)

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

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

apps/desktop/src/chat/ChatWidget.tsx

@@ -4,7 +4,7 @@ import { listen } from "@tauri-apps/api/event"
 import { Store } from "@tauri-apps/plugin-store"
 import { appLocalDataDir, join } from "@tauri-apps/api/path"
 import { open } from "@tauri-apps/plugin-dialog"
-import { Send, X, Minus, Loader2, Headphones, Paperclip, FileText, Image as ImageIcon, File, User } from "lucide-react"
+import { Send, X, Loader2, MessageCircle, Paperclip, FileText, Image as ImageIcon, File, User, ChevronUp, Minimize2 } from "lucide-react"
 import type { ChatMessage, ChatMessagesResponse, SendMessageResponse } from "./types"
 
 const STORE_FILENAME = "machine-agent.json"
@@ -47,6 +47,7 @@ export function ChatWidget({ ticketId }: ChatWidgetProps) {
   const [ticketInfo, setTicketInfo] = useState<{ ref: number; subject: string; agentName: string } | null>(null)
   const [hasSession, setHasSession] = useState(false)
   const [pendingAttachments, setPendingAttachments] = useState<UploadedAttachment[]>([])
+  const [isMinimized, setIsMinimized] = useState(false)
 
   const messagesEndRef = useRef<HTMLDivElement>(null)
   const lastFetchRef = useRef<number>(0)
@@ -292,7 +293,7 @@ export function ChatWidget({ ticketId }: ChatWidgetProps) {
   }
 
   const handleMinimize = () => {
-    invoke("minimize_chat_window", { ticketId })
+    setIsMinimized(true)
   }
 
   const handleClose = () => {
@@ -326,7 +327,34 @@ export function ChatWidget({ ticketId }: ChatWidgetProps) {
   if (!hasSession) {
     return (
       <div className="flex h-screen flex-col items-center justify-center bg-white p-4">
-        <p className="text-sm text-slate-500">Nenhuma sessão de chat ativa</p>
+        <p className="text-sm text-slate-500">Nenhuma sessao de chat ativa</p>
+      </div>
+    )
+  }
+
+  // Versao minimizada (recolhida)
+  if (isMinimized) {
+    return (
+      <div className="flex h-screen flex-col bg-white">
+        <button
+          onClick={() => setIsMinimized(false)}
+          data-tauri-drag-region
+          className="flex w-full items-center gap-3 border-b border-slate-200 bg-slate-50 px-4 py-3 text-left hover:bg-slate-100"
+        >
+          <div className="flex size-10 items-center justify-center rounded-full bg-black text-white">
+            <MessageCircle className="size-5" />
+          </div>
+          <div className="flex-1">
+            <div className="flex items-center gap-2">
+              <p className="text-sm font-semibold text-slate-900">
+                Chat #{ticketInfo?.ref}
+              </p>
+              <span className="size-2 rounded-full bg-emerald-500" />
+            </div>
+            <p className="text-xs text-slate-500">Clique para expandir</p>
+          </div>
+          <ChevronUp className="size-4 text-slate-400" />
+        </button>
       </div>
     )
   }
@@ -340,15 +368,19 @@ export function ChatWidget({ ticketId }: ChatWidgetProps) {
       >
         <div className="flex items-center gap-3">
           <div className="flex size-10 items-center justify-center rounded-full bg-black text-white">
-            <Headphones className="size-5" />
+            <MessageCircle className="size-5" />
           </div>
           <div>
-            <p className="text-sm font-semibold text-slate-900">
+            <div className="flex items-center gap-2">
-              {ticketInfo?.agentName ?? "Suporte"}
+              <p className="text-sm font-semibold text-slate-900">Chat</p>
-            </p>
+              <span className="flex items-center gap-1.5 text-xs text-emerald-600">
+                <span className="size-2 rounded-full bg-emerald-500 animate-pulse" />
+                Online
+              </span>
+            </div>
             {ticketInfo && (
               <p className="text-xs text-slate-500">
-                Chamado #{ticketInfo.ref}
+                #{ticketInfo.ref} - {ticketInfo.agentName ?? "Suporte"}
               </p>
             )}
           </div>
@@ -356,13 +388,15 @@ export function ChatWidget({ ticketId }: ChatWidgetProps) {
         <div className="flex items-center gap-1">
           <button
             onClick={handleMinimize}
-            className="rounded p-1.5 text-slate-400 hover:bg-slate-200 hover:text-slate-600"
+            className="rounded-md p-1.5 text-slate-500 hover:bg-slate-100"
+            title="Minimizar"
           >
-            <Minus className="size-4" />
+            <Minimize2 className="size-4" />
           </button>
           <button
             onClick={handleClose}
-            className="rounded p-1.5 text-slate-400 hover:bg-slate-200 hover:text-slate-600"
+            className="rounded-md p-1.5 text-slate-500 hover:bg-slate-100"
+            title="Fechar"
           >
             <X className="size-4" />
           </button>
@@ -393,11 +427,11 @@ export function ChatWidget({ ticketId }: ChatWidgetProps) {
                 >
                   {/* Avatar */}
                   <div
-                    className={`flex size-8 shrink-0 items-center justify-center rounded-full ${
+                    className={`flex size-7 shrink-0 items-center justify-center rounded-full ${
                       isAgent ? "bg-black text-white" : "bg-slate-200 text-slate-600"
                     }`}
                   >
-                    {isAgent ? <Headphones className="size-4" /> : <User className="size-4" />}
+                    {isAgent ? <MessageCircle className="size-3.5" /> : <User className="size-3.5" />}
                   </div>
 
                   {/* Bubble */}
@@ -474,10 +508,18 @@ export function ChatWidget({ ticketId }: ChatWidgetProps) {
           </div>
         )}
         <div className="flex items-end gap-2">
+          <textarea
+            value={inputValue}
+            onChange={(e) => setInputValue(e.target.value)}
+            onKeyDown={handleKeyDown}
+            placeholder="Digite sua mensagem..."
+            className="max-h-24 min-h-[36px] flex-1 resize-none rounded-lg border border-slate-200 px-3 py-2 text-sm focus:border-slate-400 focus:outline-none focus:ring-1 focus:ring-slate-400"
+            rows={1}
+          />
           <button
             onClick={handleAttach}
             disabled={isUploading || isSending}
-            className="flex size-10 items-center justify-center rounded-lg border border-slate-300 text-slate-500 transition hover:bg-slate-100 disabled:opacity-50"
+            className="flex size-9 items-center justify-center rounded-lg text-slate-500 transition hover:bg-slate-100 hover:text-slate-700 disabled:opacity-50"
             title="Anexar arquivo"
           >
             {isUploading ? (
@@ -486,18 +528,10 @@ export function ChatWidget({ ticketId }: ChatWidgetProps) {
               <Paperclip className="size-4" />
             )}
           </button>
-          <textarea
-            value={inputValue}
-            onChange={(e) => setInputValue(e.target.value)}
-            onKeyDown={handleKeyDown}
-            placeholder="Digite sua mensagem..."
-            className="max-h-24 min-h-[40px] flex-1 resize-none rounded-lg border border-slate-300 px-3 py-2 text-sm focus:border-black focus:outline-none focus:ring-1 focus:ring-black"
-            rows={1}
-          />
           <button
             onClick={handleSend}
             disabled={(!inputValue.trim() && pendingAttachments.length === 0) || isSending}
-            className="flex size-10 items-center justify-center rounded-lg bg-black text-white transition hover:bg-black/90 disabled:opacity-50"
+            className="flex size-9 items-center justify-center rounded-lg bg-black text-white transition hover:bg-black/90 disabled:opacity-50"
           >
             {isSending ? (
               <Loader2 className="size-4 animate-spin" />

src/components/chat/chat-widget.tsx

@@ -231,6 +231,10 @@ function MessageAttachment({ attachment }: { attachment: ChatAttachment }) {
 }
 
 export function ChatWidget() {
+  // Detectar se esta rodando no Tauri (desktop) - nesse caso, nao renderizar
+  // pois o chat nativo do Tauri ja esta disponivel
+  const isTauriContext = typeof window !== "undefined" && "__TAURI__" in window
+
   const { convexUserId } = useAuth()
   const viewerId = convexUserId ?? null
 
@@ -460,7 +464,10 @@ export function ChatWidget() {
     }
   }
 
-  // Não mostrar se não logado ou sem sessões
+  // Nao mostrar se esta no Tauri (usa o chat nativo)
+  if (isTauriContext) return null
+
+  // Nao mostrar se nao logado ou sem sessoes
   if (!viewerId) return null
   if (!activeSessions || activeSessions.length === 0) return null