重构部分会话消息处理逻辑，优化会话消息渲染

src/i18n/messages/ar.json

@@ -1114,8 +1114,7 @@
       },
       "shared": {
         "attachedResources": "الموارد المرفقة",
-        "toolCallFailed": "فشل استدعاء الأداة",
-        "planUpdated": "تم تحديث الخطة"
+        "toolCallFailed": "فشل استدعاء الأداة"
       },
       "messageThread": {
         "emptyTitle": "لا توجد رسائل بعد",
@@ -1147,9 +1146,6 @@
         "noEnabledAgents": "لا يوجد وكلاء مفعّلون",
         "openAgentsSettings": "فتح إعدادات الوكلاء"
       },
-      "liveMessageBlock": {
-        "assistantThinkingAria": "المساعد يفكر"
-      },
       "agentPlanOverlay": {
         "title": "خطة الوكيل",
         "collapsePlanAria": "طي الخطة",

src/i18n/messages/de.json

@@ -1114,8 +1114,7 @@
       },
       "shared": {
         "attachedResources": "Angehängte Ressourcen",
-        "toolCallFailed": "Tool-Aufruf fehlgeschlagen",
-        "planUpdated": "Plan aktualisiert"
+        "toolCallFailed": "Tool-Aufruf fehlgeschlagen"
       },
       "messageThread": {
         "emptyTitle": "Noch keine Nachrichten",
@@ -1147,9 +1146,6 @@
         "noEnabledAgents": "Keine aktivierten Agenten",
         "openAgentsSettings": "Agenten-Einstellungen öffnen"
       },
-      "liveMessageBlock": {
-        "assistantThinkingAria": "Assistent denkt nach"
-      },
       "agentPlanOverlay": {
         "title": "Agentenplan",
         "collapsePlanAria": "Plan einklappen",

src/i18n/messages/en.json

@@ -1114,8 +1114,7 @@
       },
       "shared": {
         "attachedResources": "Attached resources",
-        "toolCallFailed": "Tool call failed",
-        "planUpdated": "Plan updated"
+        "toolCallFailed": "Tool call failed"
       },
       "messageThread": {
         "emptyTitle": "No messages yet",
@@ -1147,9 +1146,6 @@
         "noEnabledAgents": "No enabled agents",
         "openAgentsSettings": "Open Agents settings"
       },
-      "liveMessageBlock": {
-        "assistantThinkingAria": "Assistant is thinking"
-      },
       "agentPlanOverlay": {
         "title": "Agent Plan",
         "collapsePlanAria": "Collapse plan",

src/i18n/messages/es.json

@@ -1114,8 +1114,7 @@
       },
       "shared": {
         "attachedResources": "Recursos adjuntos",
-        "toolCallFailed": "Falló la llamada de herramienta",
-        "planUpdated": "Plan actualizado"
+        "toolCallFailed": "Falló la llamada de herramienta"
       },
       "messageThread": {
         "emptyTitle": "Aún no hay mensajes",
@@ -1147,9 +1146,6 @@
         "noEnabledAgents": "No hay agentes habilitados",
         "openAgentsSettings": "Abrir ajustes de agentes"
       },
-      "liveMessageBlock": {
-        "assistantThinkingAria": "El asistente está pensando"
-      },
       "agentPlanOverlay": {
         "title": "Plan del agente",
         "collapsePlanAria": "Contraer plan",

src/i18n/messages/fr.json

@@ -1114,8 +1114,7 @@
       },
       "shared": {
         "attachedResources": "Ressources jointes",
-        "toolCallFailed": "Échec de l'appel d'outil",
-        "planUpdated": "Plan mis à jour"
+        "toolCallFailed": "Échec de l'appel d'outil"
       },
       "messageThread": {
         "emptyTitle": "Aucun message pour le moment",
@@ -1147,9 +1146,6 @@
         "noEnabledAgents": "Aucun agent activé",
         "openAgentsSettings": "Ouvrir les paramètres des agents"
       },
-      "liveMessageBlock": {
-        "assistantThinkingAria": "L'assistant réfléchit"
-      },
       "agentPlanOverlay": {
         "title": "Plan de l'agent",
         "collapsePlanAria": "Réduire le plan",

src/i18n/messages/ja.json

@@ -1114,8 +1114,7 @@
       },
       "shared": {
         "attachedResources": "添付リソース",
-        "toolCallFailed": "ツール呼び出しに失敗しました",
-        "planUpdated": "プランを更新しました"
+        "toolCallFailed": "ツール呼び出しに失敗しました"
       },
       "messageThread": {
         "emptyTitle": "まだメッセージはありません",
@@ -1147,9 +1146,6 @@
         "noEnabledAgents": "有効なエージェントがありません",
         "openAgentsSettings": "エージェント設定を開く"
       },
-      "liveMessageBlock": {
-        "assistantThinkingAria": "アシスタントが考え中です"
-      },
       "agentPlanOverlay": {
         "title": "エージェントプラン",
         "collapsePlanAria": "プランを折りたたむ",

src/i18n/messages/ko.json

@@ -1114,8 +1114,7 @@
       },
       "shared": {
         "attachedResources": "첨부된 리소스",
-        "toolCallFailed": "도구 호출 실패",
-        "planUpdated": "계획이 업데이트되었습니다"
+        "toolCallFailed": "도구 호출 실패"
       },
       "messageThread": {
         "emptyTitle": "아직 메시지가 없습니다",
@@ -1147,9 +1146,6 @@
         "noEnabledAgents": "활성화된 에이전트가 없습니다",
         "openAgentsSettings": "에이전트 설정 열기"
       },
-      "liveMessageBlock": {
-        "assistantThinkingAria": "어시스턴트가 생각 중"
-      },
       "agentPlanOverlay": {
         "title": "에이전트 계획",
         "collapsePlanAria": "계획 접기",

src/i18n/messages/pt.json

@@ -1114,8 +1114,7 @@
       },
       "shared": {
         "attachedResources": "Recursos anexados",
-        "toolCallFailed": "Falha na chamada da ferramenta",
-        "planUpdated": "Plano atualizado"
+        "toolCallFailed": "Falha na chamada da ferramenta"
       },
       "messageThread": {
         "emptyTitle": "Ainda não há mensagens",
@@ -1147,9 +1146,6 @@
         "noEnabledAgents": "Nenhum agente habilitado",
         "openAgentsSettings": "Abrir configurações de agentes"
       },
-      "liveMessageBlock": {
-        "assistantThinkingAria": "O assistente está pensando"
-      },
       "agentPlanOverlay": {
         "title": "Plano do agente",
         "collapsePlanAria": "Recolher plano",

src/i18n/messages/zh-CN.json

@@ -1114,8 +1114,7 @@
       },
       "shared": {
         "attachedResources": "附加资源",
-        "toolCallFailed": "工具调用失败",
-        "planUpdated": "计划已更新"
+        "toolCallFailed": "工具调用失败"
       },
       "messageThread": {
         "emptyTitle": "暂无消息",
@@ -1147,9 +1146,6 @@
         "noEnabledAgents": "暂无已启用的 Agent",
         "openAgentsSettings": "打开 Agents 设置"
       },
-      "liveMessageBlock": {
-        "assistantThinkingAria": "助手正在思考"
-      },
       "agentPlanOverlay": {
         "title": "Agent 计划",
         "collapsePlanAria": "折叠计划",

src/i18n/messages/zh-TW.json

@@ -1114,8 +1114,7 @@
       },
       "shared": {
         "attachedResources": "附加資源",
-        "toolCallFailed": "工具呼叫失敗",
-        "planUpdated": "計畫已更新"
+        "toolCallFailed": "工具呼叫失敗"
       },
       "messageThread": {
         "emptyTitle": "暫無訊息",
@@ -1147,9 +1146,6 @@
         "noEnabledAgents": "暫無已啟用的 Agent",
         "openAgentsSettings": "開啟 Agents 設定"
       },
-      "liveMessageBlock": {
-        "assistantThinkingAria": "助手正在思考"
-      },
       "agentPlanOverlay": {
         "title": "Agent 計畫",
         "collapsePlanAria": "摺疊計畫",