fix(desktop-chat): estabiliza janelas e melhora multi-conversas

.forgejo/workflows/ci-cd-web-desktop.yml

@@ -189,48 +189,38 @@ jobs:
             chown -R 1000:1000 /target
           echo "Permissoes do build corrigidas"
 
-      - name: Publish build to stable APP_DIR directory
+      - name: Atualizar symlink do APP_DIR estavel (deploy atomico)
         run: |
-          set -e
+          set -euo pipefail
-          DEST="$HOME/apps/sistema"
+          ROOT="$HOME/apps"
-          PARENT_DIR="$HOME/apps"
+          STABLE_LINK="$ROOT/sistema.current"
 
-          # SOLUCAO DEFINITIVA: Limpar completamente o destino usando Docker (root)
+          mkdir -p "$ROOT"
-          # Isso evita erros de permissao de arquivos criados por Docker em deploys anteriores
+
-          if [ -d "$DEST" ]; then
+          # Sanidade: se esses arquivos nao existirem, o container vai falhar no boot.
-            echo "Limpando diretorio destino: $DEST"
+          test -f "$EFFECTIVE_APP_DIR/scripts/start-web.sh" || { echo "ERROR: scripts/start-web.sh nao encontrado em $EFFECTIVE_APP_DIR" >&2; exit 1; }
-            # Preservar apenas o .env (configuracoes de producao)
+          test -f "$EFFECTIVE_APP_DIR/stack.yml" || { echo "ERROR: stack.yml nao encontrado em $EFFECTIVE_APP_DIR" >&2; exit 1; }
-            if [ -f "$DEST/.env" ]; then
+          test -d "$EFFECTIVE_APP_DIR/node_modules" || { echo "ERROR: node_modules nao encontrado em $EFFECTIVE_APP_DIR (necessario para next start)" >&2; exit 1; }
-              docker run --rm -v "$DEST":/src -v /tmp:/backup alpine:3 \
+          test -d "$EFFECTIVE_APP_DIR/.next" || { echo "ERROR: .next nao encontrado em $EFFECTIVE_APP_DIR (build nao gerado)" >&2; exit 1; }
-                cp /src/.env /backup/.env.backup
+
-              echo ".env salvo em /tmp/.env.backup"
+          PREV=""
+          if [ -L "$STABLE_LINK" ]; then
+            PREV="$(readlink -f "$STABLE_LINK" || true)"
           fi
-            # Remover o diretorio COMPLETAMENTE usando Docker Alpine como root
+          echo "PREV_APP_DIR=$PREV" >> "$GITHUB_ENV"
-            docker run --rm -v "$PARENT_DIR":/parent alpine:3 \
+
-              rm -rf /parent/sistema
+          ln -sfn "$EFFECTIVE_APP_DIR" "$STABLE_LINK"
-            echo "Diretorio removido"
+
+          # Compat: mantem $HOME/apps/sistema como symlink quando possivel (nao mexe se for pasta).
+          if [ -L "$ROOT/sistema" ] || [ ! -e "$ROOT/sistema" ]; then
+            ln -sfn "$STABLE_LINK" "$ROOT/sistema"
           fi
 
-          # Recriar o diretorio (sera criado com permissoes do usuario runner)
+          echo "APP_DIR estavel -> $(readlink -f "$STABLE_LINK")"
-          mkdir -p "$DEST"
-
-          # Restaurar .env antes do rsync
-          if [ -f /tmp/.env.backup ]; then
-            cp /tmp/.env.backup "$DEST/.env"
-            rm /tmp/.env.backup
-            echo ".env restaurado"
-          fi
-
-          # Copiar build completo (sem conflitos de permissao agora)
-          rsync -a --no-owner --no-group \
-            --exclude '.pnpm-store' --exclude '.pnpm-store/**' \
-            "$EFFECTIVE_APP_DIR"/ "$DEST"/
-
-          echo "Published build to: $DEST"
 
       - name: Swarm deploy (stack.yml)
         run: |
-          APP_DIR_STABLE="$HOME/apps/sistema"
+          APP_DIR_STABLE="$HOME/apps/sistema.current"
           if [ ! -d "$APP_DIR_STABLE" ]; then
             echo "ERROR: Stable APP_DIR does not exist: $APP_DIR_STABLE" >&2; exit 1
           fi
@@ -261,8 +251,24 @@ jobs:
             fi
             sleep 10
           done
-          echo "AVISO: Timeout aguardando servicos. Status atual:"
+          echo "ERRO: Timeout aguardando servicos. Status atual:"
-          docker service ls --filter "label=com.docker.stack.namespace=sistema"
+          docker service ls --filter "label=com.docker.stack.namespace=sistema" || true
+          docker service ps sistema_web --no-trunc || true
+          docker service logs sistema_web --since 5m --raw 2>/dev/null | tail -n 200 || true
+
+          if [ -n "${PREV_APP_DIR:-}" ]; then
+            echo "Rollback: revertendo APP_DIR estavel para: $PREV_APP_DIR"
+            ln -sfn "$PREV_APP_DIR" "$HOME/apps/sistema.current"
+            cd "$HOME/apps/sistema.current"
+            set -o allexport
+            if [ -f .env ]; then
+              . ./.env
+            fi
+            set +o allexport
+            APP_DIR="$HOME/apps/sistema.current" RELEASE_SHA=${{ github.sha }} docker stack deploy --with-registry-auth -c stack.yml sistema || true
+          fi
+
+          exit 1
 
       - name: Cleanup old build workdirs (keep last 2)
         run: |
@@ -270,7 +276,7 @@ jobs:
           ROOT="$HOME/apps"
           KEEP=2
           PATTERN='web.build.*'
-          ACTIVE="$HOME/apps/sistema"
+          ACTIVE="$(readlink -f "$HOME/apps/sistema.current" 2>/dev/null || true)"
           echo "Scanning $ROOT for old $PATTERN dirs"
           LIST=$(find "$ROOT" -maxdepth 1 -type d -name "$PATTERN" | sort -r || true)
           echo "$LIST" | sed -n "1,${KEEP}p" | sed 's/^/Keeping: /' || true

apps/desktop/src-tauri/src/chat.rs

@@ -1000,35 +1000,15 @@ async fn process_chat_update(
             }
         }
 
-        // Se ha multiplas sessoes ativas, usar o hub; senao, abrir janela do chat individual
+        // Se ha multiplas sessoes ativas, usar o hub; senao, abrir janela do chat individual.
-        // SIMPLIFICADO: Removido inner_size() que bloqueava a UI thread
+        //
+        // Importante (UX): em multiplas sessoes, NAO fecha a janela ativa quando chega mensagem em outra conversa.
+        // O hub + badge/notificacao sinalizam novas mensagens e o usuario decide quando alternar.
         if current_sessions.len() > 1 {
-            // Multiplas sessoes - usar hub window
-            // Primeiro, fechar todas as janelas individuais de chat para evitar sobreposicao
-            for session in &current_sessions {
-                let label = format!("chat-{}", session.ticket_id);
-                if let Some(window) = app.get_webview_window(&label) {
-                    let _ = window.close();
-                }
-            }
-
-            if app.get_webview_window(HUB_WINDOW_LABEL).is_none() {
-                // Hub nao existe - criar minimizado
             let _ = open_hub_window(app);
         } else {
-                // Hub ja existe - mostrar e trazer para frente
+            // Uma sessao - nao precisa de hub
-                if let Some(hub) = app.get_webview_window(HUB_WINDOW_LABEL) {
+            let _ = close_hub_window(app);
-                    let _ = hub.show();
-                    let _ = hub.set_focus();
-                    let _ = hub.unminimize();
-                }
-            }
-        } else {
-            // Uma sessao - abrir janela individual
-            // Fechar o Hub se estiver aberto (nao precisa mais quando ha apenas 1 chat)
-            if let Some(hub) = app.get_webview_window(HUB_WINDOW_LABEL) {
-                let _ = hub.close();
-            }
 
             // Fallback: se nao conseguimos detectar delta, pega a sessao com mais unread e mais recente.
             let session_to_show = if best_delta > 0 {
@@ -1041,21 +1021,11 @@ async fn process_chat_update(
                 })
             };
 
-            // Mostrar janela de chat (se nao existe, cria minimizada; se existe, traz para frente)
+            // Mostrar janela de chat (sempre minimizada/nao intrusiva)
             if let Some(session) = session_to_show {
-                let label = format!("chat-{}", session.ticket_id);
-                if let Some(window) = app.get_webview_window(&label) {
-                    // Janela ja existe - mostrar e trazer para frente
-                    let _ = window.show();
-                    let _ = window.set_focus();
-                    // Garantir que fique visivel mesmo se estava minimizada na taskbar
-                    let _ = window.unminimize();
-                } else {
-                    // Criar nova janela ja minimizada (menos intrusivo)
                 let _ = open_chat_window_internal(app, &session.ticket_id, session.ticket_ref, true);
             }
         }
-        }
 
         // Notificacao nativa
         let notification_title = "Nova mensagem de suporte";
@@ -1087,6 +1057,9 @@ async fn process_chat_update(
 // WINDOW MANAGEMENT
 // ============================================================================
 
+// Serializa operacoes de janela para evitar race/deadlock no Windows (winit/WebView2).
+static WINDOW_OP_LOCK: Lazy<Mutex<()>> = Lazy::new(|| Mutex::new(()));
+
 fn resolve_chat_window_position(
     app: &tauri::AppHandle,
     window: Option<&tauri::WebviewWindow>,
@@ -1128,21 +1101,36 @@ fn resolve_chat_window_position(
 }
 
 fn open_chat_window_internal(app: &tauri::AppHandle, ticket_id: &str, ticket_ref: u64, start_minimized: bool) -> Result<(), String> {
+    let _guard = WINDOW_OP_LOCK.lock();
     open_chat_window_with_state(app, ticket_id, ticket_ref, start_minimized)
 }
 
 /// Abre janela de chat com estado inicial de minimizacao configuravel
 fn open_chat_window_with_state(app: &tauri::AppHandle, ticket_id: &str, ticket_ref: u64, start_minimized: bool) -> Result<(), String> {
     let label = format!("chat-{}", ticket_id);
+    crate::log_info!(
+        "[WINDOW] open_chat_window: label={} ticket_ref={} start_minimized={}",
+        label,
+        ticket_ref,
+        start_minimized
+    );
 
     // Verificar se ja existe
     if let Some(window) = app.get_webview_window(&label) {
+        let _ = window.set_ignore_cursor_events(false);
+        crate::log_info!("[WINDOW] {}: window existe -> show()", label);
         window.show().map_err(|e| e.to_string())?;
+        let _ = window.unminimize();
+        if !start_minimized {
+            crate::log_info!("[WINDOW] {}: window existe -> set_focus()", label);
             window.set_focus().map_err(|e| e.to_string())?;
+        }
         // Expandir a janela se estiver minimizada (quando clicado na lista)
         if !start_minimized {
-            let _ = set_chat_minimized(app, ticket_id, false);
+            crate::log_info!("[WINDOW] {}: window existe -> set_chat_minimized(false)", label);
+            let _ = set_chat_minimized_unlocked(app, ticket_id, false);
         }
+        crate::log_info!("[WINDOW] {}: open_chat_window OK (reuso)", label);
         return Ok(());
     }
 
@@ -1159,7 +1147,17 @@ fn open_chat_window_with_state(app: &tauri::AppHandle, ticket_id: &str, ticket_r
     // Usar query param ao inves de path para compatibilidade com SPA
     let url_path = format!("index.html?view=chat&ticketId={}&ticketRef={}", ticket_id, ticket_ref);
 
-    WebviewWindowBuilder::new(
+    crate::log_info!(
+        "[WINDOW] {}: build() inicio size={}x{} pos=({},{}) url={}",
+        label,
+        width,
+        height,
+        x,
+        y,
+        url_path
+    );
+
+    let window = WebviewWindowBuilder::new(
         app,
         &label,
         WebviewUrl::App(url_path.into()),
@@ -1172,16 +1170,24 @@ fn open_chat_window_with_state(app: &tauri::AppHandle, ticket_id: &str, ticket_r
     .transparent(true) // Permite fundo transparente
     .shadow(false) // Desabilitar sombra para transparencia funcionar corretamente
     .resizable(false) // Desabilitar redimensionamento manual
-    // REMOVIDO: always_on_top(true) causa competicao de Z-order com multiplas janelas
+    // Mantem o chat acessivel mesmo ao trocar de janela/app (skip_taskbar=true).
+    .always_on_top(true)
     .skip_taskbar(true)
-    .focused(true)
+    .focused(!start_minimized)
     .visible(true)
     .build()
     .map_err(|e| e.to_string())?;
 
+    crate::log_info!("[WINDOW] {}: build() OK", label);
+
+    // IMPORTANTE: Garantir que a janela receba eventos de cursor (evita click-through)
+    let _ = window.set_ignore_cursor_events(false);
+
+    crate::log_info!("[WINDOW] {}: pos-build set_chat_minimized({}) inicio", label, start_minimized);
     // Reaplica layout/posicao logo apos criar a janela.
     // Isso evita que a primeira abertura apareca no canto superior esquerdo em alguns ambientes.
-    let _ = set_chat_minimized(app, ticket_id, start_minimized);
+    let _ = set_chat_minimized_unlocked(app, ticket_id, start_minimized);
+    crate::log_info!("[WINDOW] {}: pos-build set_chat_minimized({}) fim", label, start_minimized);
 
     crate::log_info!("Janela de chat aberta (minimizada={}): {}", start_minimized, label);
     Ok(())
@@ -1193,6 +1199,7 @@ pub fn open_chat_window(app: &tauri::AppHandle, ticket_id: &str, ticket_ref: u64
 }
 
 pub fn close_chat_window(app: &tauri::AppHandle, ticket_id: &str) -> Result<(), String> {
+    let _guard = WINDOW_OP_LOCK.lock();
     let label = format!("chat-{}", ticket_id);
     if let Some(window) = app.get_webview_window(&label) {
         window.close().map_err(|e| e.to_string())?;
@@ -1201,6 +1208,7 @@ pub fn close_chat_window(app: &tauri::AppHandle, ticket_id: &str) -> Result<(),
 }
 
 pub fn minimize_chat_window(app: &tauri::AppHandle, ticket_id: &str) -> Result<(), String> {
+    let _guard = WINDOW_OP_LOCK.lock();
     let label = format!("chat-{}", ticket_id);
     if let Some(window) = app.get_webview_window(&label) {
         window.hide().map_err(|e| e.to_string())?;
@@ -1209,7 +1217,7 @@ pub fn minimize_chat_window(app: &tauri::AppHandle, ticket_id: &str) -> Result<(
 }
 
 /// Redimensiona a janela de chat para modo minimizado (chip) ou expandido
-pub fn set_chat_minimized(app: &tauri::AppHandle, ticket_id: &str, minimized: bool) -> Result<(), String> {
+fn set_chat_minimized_unlocked(app: &tauri::AppHandle, ticket_id: &str, minimized: bool) -> Result<(), String> {
     let label = format!("chat-{}", ticket_id);
     let window = app.get_webview_window(&label).ok_or("Janela não encontrada")?;
 
@@ -1224,13 +1232,22 @@ pub fn set_chat_minimized(app: &tauri::AppHandle, ticket_id: &str, minimized: bo
     let (x, y) = resolve_chat_window_position(app, Some(&window), width, height);
 
     // Aplicar novo tamanho e posicao
+    crate::log_info!("[WINDOW] {}: set_chat_minimized({}) set_size inicio", label, minimized);
     window.set_size(tauri::LogicalSize::new(width, height)).map_err(|e| e.to_string())?;
+    crate::log_info!("[WINDOW] {}: set_chat_minimized({}) set_size OK", label, minimized);
+    crate::log_info!("[WINDOW] {}: set_chat_minimized({}) set_position inicio", label, minimized);
     window.set_position(tauri::LogicalPosition::new(x, y)).map_err(|e| e.to_string())?;
+    crate::log_info!("[WINDOW] {}: set_chat_minimized({}) set_position OK", label, minimized);
 
     crate::log_info!("Chat {} -> minimized={}", ticket_id, minimized);
     Ok(())
 }
 
+pub fn set_chat_minimized(app: &tauri::AppHandle, ticket_id: &str, minimized: bool) -> Result<(), String> {
+    let _guard = WINDOW_OP_LOCK.lock();
+    set_chat_minimized_unlocked(app, ticket_id, minimized)
+}
+
 // ============================================================================
 // HUB WINDOW MANAGEMENT (Lista de todas as sessoes)
 // ============================================================================
@@ -1238,14 +1255,19 @@ pub fn set_chat_minimized(app: &tauri::AppHandle, ticket_id: &str, minimized: bo
 const HUB_WINDOW_LABEL: &str = "chat-hub";
 
 pub fn open_hub_window(app: &tauri::AppHandle) -> Result<(), String> {
+    let _guard = WINDOW_OP_LOCK.lock();
     open_hub_window_with_state(app, true) // Por padrao abre minimizada
 }
 
 fn open_hub_window_with_state(app: &tauri::AppHandle, start_minimized: bool) -> Result<(), String> {
     // Verificar se ja existe
     if let Some(window) = app.get_webview_window(HUB_WINDOW_LABEL) {
+        let _ = window.set_ignore_cursor_events(false);
         window.show().map_err(|e| e.to_string())?;
+        let _ = window.unminimize();
+        if !start_minimized {
             window.set_focus().map_err(|e| e.to_string())?;
+        }
         return Ok(());
     }
 
@@ -1275,9 +1297,10 @@ fn open_hub_window_with_state(app: &tauri::AppHandle, start_minimized: bool) ->
     .transparent(true)
     .shadow(false)
     .resizable(false) // Desabilitar redimensionamento manual
-    // REMOVIDO: always_on_top(true) causa competicao de Z-order com multiplas janelas
+    // Mantem o hub acessivel mesmo ao trocar de janela/app (skip_taskbar=true).
+    .always_on_top(true)
     .skip_taskbar(true)
-    .focused(true)
+    .focused(!start_minimized)
     .visible(true)
     .build()
     .map_err(|e| e.to_string())?;
@@ -1285,8 +1308,10 @@ fn open_hub_window_with_state(app: &tauri::AppHandle, start_minimized: bool) ->
     // IMPORTANTE: Garantir que a janela receba eventos de cursor (evita click-through)
     if let Some(hub) = app.get_webview_window(HUB_WINDOW_LABEL) {
         let _ = hub.set_ignore_cursor_events(false);
+        if !start_minimized {
             let _ = hub.set_focus();
         }
+    }
 
     // REMOVIDO TEMPORARIAMENTE: set_hub_minimized logo apos build pode causar
     // "resize em cima do resize" no timing errado do WebView2
@@ -1297,6 +1322,7 @@ fn open_hub_window_with_state(app: &tauri::AppHandle, start_minimized: bool) ->
 }
 
 pub fn close_hub_window(app: &tauri::AppHandle) -> Result<(), String> {
+    let _guard = WINDOW_OP_LOCK.lock();
     if let Some(window) = app.get_webview_window(HUB_WINDOW_LABEL) {
         window.close().map_err(|e| e.to_string())?;
     }
@@ -1304,6 +1330,7 @@ pub fn close_hub_window(app: &tauri::AppHandle) -> Result<(), String> {
 }
 
 pub fn set_hub_minimized(app: &tauri::AppHandle, minimized: bool) -> Result<(), String> {
+    let _guard = WINDOW_OP_LOCK.lock();
     let window = app.get_webview_window(HUB_WINDOW_LABEL).ok_or("Hub window não encontrada")?;
 
     let (width, height) = if minimized {
@@ -1318,8 +1345,10 @@ pub fn set_hub_minimized(app: &tauri::AppHandle, minimized: bool) -> Result<(),
     window.set_size(tauri::LogicalSize::new(width, height)).map_err(|e| e.to_string())?;
     window.set_position(tauri::LogicalPosition::new(x, y)).map_err(|e| e.to_string())?;
 
-    // Reforcar foco apos resize
+    // Foco apenas quando expandir (evita roubar foco ao minimizar apos abrir um chat).
+    if !minimized {
         let _ = window.set_focus();
+    }
 
     crate::log_info!("Hub -> minimized={}, size={}x{}, pos=({},{})", minimized, width, height, x, y);
     Ok(())

apps/desktop/src/chat/ChatHubWidget.tsx

@@ -39,19 +39,11 @@ export function ChatHubWidget() {
     return () => window.removeEventListener("resize", handler)
   }, [])
 
-  // DEBUG: Detectar se a janela esta em modo click-through
-  useEffect(() => {
-    const onDown = (e: PointerEvent) => console.log("POINTER DOWN HUB", e.target)
-    window.addEventListener("pointerdown", onDown)
-    return () => window.removeEventListener("pointerdown", onDown)
-  }, [])
-
   const handleSelectSession = async (ticketId: string, ticketRef: number) => {
-    console.log("handleSelectSession CALLED", { ticketId, ticketRef })
     try {
       // Tauri 2.x auto-converts snake_case (Rust) to camelCase (JS)
-      const result = await invoke("open_chat_window", { ticketId, ticketRef })
+      await invoke("open_chat_window", { ticketId, ticketRef })
-      console.log("open_chat_window SUCCESS", result)
+      await invoke("close_hub_window")
     } catch (err) {
       console.error("open_chat_window FAILED:", err)
     }
@@ -67,10 +59,8 @@ export function ChatHubWidget() {
   }
 
   const handleExpand = async () => {
-    console.log("handleExpand CALLED")
     try {
-      const result = await invoke("set_hub_minimized", { minimized: false })
+      await invoke("set_hub_minimized", { minimized: false })
-      console.log("set_hub_minimized SUCCESS", result)
       setTimeout(() => setIsMinimized(false), 100)
     } catch (err) {
       console.error("set_hub_minimized FAILED:", err)
@@ -127,13 +117,9 @@ export function ChatHubWidget() {
       <div className="pointer-events-none flex h-full w-full items-end justify-end bg-transparent pr-3">
         <button
           onClick={(e) => {
-            console.log("EXPAND BUTTON CLICKED")
             e.stopPropagation()
             handleExpand()
           }}
-          onPointerDown={(e) => console.log("EXPAND POINTER DOWN", e.target)}
-          onMouseDown={(e) => console.log("EXPAND MOUSE DOWN", e.target)}
-          onMouseUp={(e) => console.log("EXPAND MOUSE UP", e.target)}
           className="pointer-events-auto relative flex items-center gap-2 rounded-full bg-black px-4 py-2 text-white shadow-lg hover:bg-black/90"
         >
           <MessageCircle className="size-4" />
@@ -175,14 +161,14 @@ export function ChatHubWidget() {
           <button
             onClick={handleMinimize}
             className="rounded-md p-1.5 text-slate-500 hover:bg-slate-100"
-            title="Minimizar"
+            aria-label="Minimizar lista de chats"
           >
             <Minimize2 className="size-4" />
           </button>
           <button
             onClick={handleClose}
             className="rounded-md p-1.5 text-slate-500 hover:bg-slate-100"
-            title="Fechar"
+            aria-label="Fechar lista de chats"
           >
             <X className="size-4" />
           </button>
@@ -213,7 +199,6 @@ function SessionItem({
   onClick: () => void
 }) {
   const handleClick = (e: React.MouseEvent) => {
-    console.log("SESSION ITEM CLICKED", session.ticketRef)
     e.stopPropagation()
     onClick()
   }
@@ -221,7 +206,6 @@ function SessionItem({
   return (
     <button
       onClick={handleClick}
-      onPointerDown={() => console.log("SESSION POINTER DOWN", session.ticketRef)}
       className="flex w-full items-center gap-3 rounded-xl p-3 text-left transition hover:bg-slate-50"
     >
       {/* Avatar */}

apps/desktop/src/chat/ChatWidget.tsx

@@ -12,9 +12,9 @@ import { useCallback, useEffect, useMemo, useRef, useState } from "react"
 import { open as openDialog } from "@tauri-apps/plugin-dialog"
 import { openUrl as openExternal } from "@tauri-apps/plugin-opener"
 import { invoke } from "@tauri-apps/api/core"
-import { Send, X, Loader2, MessageCircle, Paperclip, FileText, Image as ImageIcon, File, User, ChevronUp, Minimize2, Eye, Download, Check } from "lucide-react"
+import { Send, X, Loader2, MessageCircle, Paperclip, FileText, Image as ImageIcon, File, User, ChevronUp, Minimize2, Eye, Download, Check, MessagesSquare } from "lucide-react"
 import type { Id } from "@convex/_generated/dataModel"
-import { useMachineMessages, usePostMachineMessage, useMarkMachineMessagesRead, type MachineMessage } from "./useConvexMachineQueries"
+import { useMachineMessages, useMachineSessions, usePostMachineMessage, useMarkMachineMessagesRead, type MachineMessage } from "./useConvexMachineQueries"
 import { useConvexMachine } from "./ConvexMachineProvider"
 
 const MAX_MESSAGES_IN_MEMORY = 200
@@ -178,7 +178,7 @@ function MessageAttachment({
           <button
             onClick={handleView}
             className="flex size-7 items-center justify-center rounded-full bg-white/20 hover:bg-white/30"
-            title="Visualizar"
+            aria-label="Visualizar anexo"
           >
             <Eye className="size-4 text-white" />
           </button>
@@ -186,7 +186,7 @@ function MessageAttachment({
             onClick={handleDownload}
             disabled={downloading}
             className="flex size-7 items-center justify-center rounded-full bg-white/20 hover:bg-white/30 disabled:opacity-60"
-            title="Baixar"
+            aria-label="Baixar anexo"
           >
             {downloading ? (
               <Loader2 className="size-4 animate-spin text-white" />
@@ -204,7 +204,11 @@ function MessageAttachment({
   return (
     <div className={`flex items-center gap-2 rounded-lg p-2 text-xs ${isAgent ? "bg-white/10" : "bg-slate-100"}`}>
       {getFileIcon(attachment.name)}
-      <button onClick={handleView} className="flex-1 truncate text-left hover:underline" title="Visualizar">
+      <button
+        onClick={handleView}
+        className="flex-1 truncate text-left hover:underline"
+        aria-label={`Visualizar anexo ${attachment.name}`}
+      >
         {attachment.name}
       </button>
       {sizeLabel && <span className="text-xs opacity-60">({sizeLabel})</span>}
@@ -212,7 +216,7 @@ function MessageAttachment({
         <button
           onClick={handleView}
           className={`flex size-7 items-center justify-center rounded-md ${isAgent ? "hover:bg-white/10" : "hover:bg-slate-200"}`}
-          title="Visualizar"
+          aria-label="Visualizar anexo"
         >
           <Eye className="size-4" />
         </button>
@@ -220,7 +224,7 @@ function MessageAttachment({
           onClick={handleDownload}
           disabled={downloading}
           className={`flex size-7 items-center justify-center rounded-md disabled:opacity-60 ${isAgent ? "hover:bg-white/10" : "hover:bg-slate-200"}`}
-          title="Baixar"
+          aria-label="Baixar anexo"
         >
           {downloading ? (
             <Loader2 className="size-4 animate-spin" />
@@ -250,6 +254,7 @@ export function ChatWidget({ ticketId, ticketRef }: ChatWidgetProps) {
 
   // Convex hooks
   const { apiBaseUrl, machineToken } = useConvexMachine()
+  const { sessions: machineSessions = [] } = useMachineSessions()
   const { messages: convexMessages, hasSession, unreadCount, isLoading } = useMachineMessages(
     ticketId as Id<"tickets">,
     { limit: MAX_MESSAGES_IN_MEMORY }
@@ -276,6 +281,22 @@ export function ChatWidget({ ticketId, ticketRef }: ChatWidgetProps) {
   const unreadAgentMessageIds = useMemo(() => getUnreadAgentMessageIds(messages, unreadCount), [messages, unreadCount])
   const firstUnreadAgentMessageId = unreadAgentMessageIds[0] ?? null
 
+  const otherUnreadCount = useMemo(() => {
+    if (machineSessions.length <= 1) return 0
+    return machineSessions.reduce((sum, session) => {
+      return sum + (session.ticketId === ticketId ? 0 : session.unreadCount)
+    }, 0)
+  }, [machineSessions, ticketId])
+
+  const handleOpenHub = useCallback(async () => {
+    try {
+      await invoke("open_hub_window")
+      await invoke("set_hub_minimized", { minimized: false })
+    } catch (err) {
+      console.error("Erro ao abrir hub:", err)
+    }
+  }, [])
+
   const updateIsAtBottom = useCallback(() => {
     const el = messagesContainerRef.current
     if (!el) return
@@ -562,7 +583,7 @@ export function ChatWidget({ ticketId, ticketRef }: ChatWidgetProps) {
           <button
             onClick={handleClose}
             className="ml-1 rounded-full p-1 text-slate-600 hover:bg-slate-300/60"
-            title="Fechar"
+            aria-label="Fechar chat"
           >
             <X className="size-4" />
           </button>
@@ -621,17 +642,31 @@ export function ChatWidget({ ticketId, ticketRef }: ChatWidgetProps) {
           </div>
         </div>
         <div className="flex items-center gap-1">
+          {machineSessions.length > 1 && (
+            <button
+              onClick={handleOpenHub}
+              className="relative rounded-md p-1.5 text-slate-500 hover:bg-slate-100"
+              aria-label="Abrir lista de chats"
+            >
+              <MessagesSquare className="size-4" />
+              {otherUnreadCount > 0 && (
+                <span className="absolute -right-1 -top-1 flex size-5 items-center justify-center rounded-full bg-red-500 text-[10px] font-bold text-white">
+                  {otherUnreadCount > 9 ? "9+" : otherUnreadCount}
+                </span>
+              )}
+            </button>
+          )}
           <button
             onClick={handleMinimize}
             className="rounded-md p-1.5 text-slate-500 hover:bg-slate-100"
-            title="Minimizar"
+            aria-label="Minimizar chat"
           >
             <Minimize2 className="size-4" />
           </button>
           <button
             onClick={handleClose}
             className="rounded-md p-1.5 text-slate-500 hover:bg-slate-100"
-            title="Fechar"
+            aria-label="Fechar chat"
           >
             <X className="size-4" />
           </button>
@@ -772,6 +807,7 @@ export function ChatWidget({ ticketId, ticketRef }: ChatWidgetProps) {
                 <button
                   onClick={() => handleRemoveAttachment(att.storageId)}
                   className="ml-1 rounded p-0.5 text-slate-400 hover:bg-slate-200 hover:text-slate-600"
+                  aria-label={`Remover anexo ${att.name}`}
                 >
                   <X className="size-3" />
                 </button>
@@ -792,7 +828,7 @@ export function ChatWidget({ ticketId, ticketRef }: ChatWidgetProps) {
             onClick={handleAttach}
             disabled={isUploading || isSending}
             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"
+            aria-label="Anexar arquivo"
           >
             {isUploading ? (
               <Loader2 className="size-4 animate-spin" />
@@ -804,6 +840,7 @@ export function ChatWidget({ ticketId, ticketRef }: ChatWidgetProps) {
             onClick={handleSend}
             disabled={(!inputValue.trim() && pendingAttachments.length === 0) || isSending}
             className="flex size-9 items-center justify-center rounded-lg bg-black text-white transition hover:bg-black/90 disabled:opacity-50"
+            aria-label="Enviar mensagem"
           >
             {isSending ? (
               <Loader2 className="size-4 animate-spin" />