feat: 重构订单和物流信息展示格式

主要改动：
- 订单列表：使用 order_list 格式，展示 5 个订单（全部状态）
- 订单详情：使用 order_detail 格式，优化价格和时间显示
- 物流信息：使用 logistics 格式，根据 track id 动态生成步骤
- 商品图片：从 orderProduct.imageUrl 字段获取
- 时间格式：统一为 YYYY-MM-DD HH:MM:SS
- 多语言支持：amountLabel、orderTime 支持中英文
- 配置管理：新增 FRONTEND_URL 环境变量
- API 集成：改进 Mall API tracks 数据解析
- 认证优化：account_id 从 webhook 动态获取

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

agent/agents/customer_service.py

@@ -69,13 +69,98 @@ async def customer_service_agent(state: AgentState) -> AgentState:
     # Auto-detect category and query FAQ
     message_lower = state["current_message"].lower()
 
-    # 定义分类关键词
+    # 定义分类关键词（支持多语言：en, nl, de, es, fr, it, tr, zh）
     category_keywords = {
-        "register": ["register", "sign up", "account", "login", "password", "forgot"],
-        "order": ["order", "place order", "cancel order", "modify order", "change order"],
-        "payment": ["pay", "payment", "checkout", "voucher", "discount", "promo"],
-        "shipment": ["ship", "shipping", "delivery", "courier", "transit", "logistics", "tracking"],
-        "return": ["return", "refund", "exchange", "defective", "damaged"],
+        "register": [
+            # English
+            "register", "sign up", "account", "login", "password", "forgot",
+            # Dutch (Nederlands)
+            "registreren", "account", "inloggen", "wachtwoord",
+            # German (Deutsch)
+            "registrieren", "konto", "anmelden", "passwort",
+            # Spanish (Español)
+            "registrar", "cuenta", "iniciar", "contraseña",
+            # French (Français)
+            "enregistrer", "compte", "connecter", "mot de passe",
+            # Italian (Italiano)
+            "registrarsi", "account", "accesso", "password",
+            # Turkish (Türkçe)
+            "kayıt", "hesap", "giriş", "şifre",
+            # Chinese (中文)
+            "注册", "账号", "登录", "密码", "忘记密码"
+        ],
+        "order": [
+            # English
+            "order", "place order", "cancel order", "modify order", "change order",
+            # Dutch
+            "bestelling", "bestellen", "annuleren", "wijzigen",
+            # German
+            "bestellung", "bestellen", "stornieren", "ändern",
+            # Spanish
+            "pedido", "hacer pedido", "cancelar", "modificar",
+            # French
+            "commande", "passer commande", "annuler", "modifier",
+            # Italian
+            "ordine", "ordinare", "cancellare", "modificare",
+            # Turkish
+            "sipariş", "sipariş ver", "iptal", "değiştir",
+            # Chinese
+            "订单", "下单", "取消订单", "修改订单", "更改订单"
+        ],
+        "payment": [
+            # English
+            "pay", "payment", "checkout", "voucher", "discount", "promo",
+            # Dutch
+            "betalen", "betaling", "korting", "voucher",
+            # German
+            "bezahlen", "zahlung", "rabatt", "gutschein",
+            # Spanish
+            "pagar", "pago", "descuento", "cupón",
+            # French
+            "payer", "paiement", "réduction", "bon",
+            # Italian
+            "pagare", "pagamento", "sconto", "voucher",
+            # Turkish
+            "ödemek", "ödeme", "indirim", "kupon",
+            # Chinese
+            "支付", "付款", "结算", "优惠券", "折扣", "促销"
+        ],
+        "shipment": [
+            # English
+            "ship", "shipping", "delivery", "courier", "transit", "logistics", "tracking",
+            # Dutch
+            "verzenden", "levering", "koerier", "logistiek", "volgen",
+            # German
+            "versand", "lieferung", "kurier", "logistik", "verfolgung",
+            # Spanish
+            "enviar", "envío", "entrega", "mensajería", "logística", "seguimiento",
+            # French
+            "expédier", "livraison", "coursier", "logistique", "suivi",
+            # Italian
+            "spedire", "spedizione", "consegna", "corriere", "logistica", "tracciamento",
+            # Turkish
+            "gönderi", "teslimat", "kurye", "lojistik", "takip",
+            # Chinese
+            "发货", "配送", "快递", "物流", "运输", "配送单"
+        ],
+        "return": [
+            # English
+            "return", "refund", "exchange", "defective", "damaged",
+            # Dutch
+            "retour", "terugbetaling", "ruilen", "defect",
+            # German
+            "rückgabe", "erstattung", "austausch", "defekt",
+            # Spanish
+            "devolución", "reembolso", "cambio", "defectuoso",
+            # French
+            "retour", "remboursement", "échange", "défectueux",
+            # Italian
+            "reso", "rimborso", "cambio", "difettoso",
+            # Turkish
+            "iade", "geri ödeme", "değişim", "defekt",
+            # Chinese
+            "退货", "退款", "换货", "有缺陷", "损坏"
+        ],
     }
 
     # 检测分类