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/core/graph.py

@@ -367,7 +367,8 @@ async def process_message(
     message: str,
     history: list[dict] = None,
     context: dict = None,
-    user_token: str = None
+    user_token: str = None,
+    mall_token: str = None
 ) -> AgentState:
     """Process a user message through the agent workflow
 
@@ -379,6 +380,7 @@ async def process_message(
         history: Previous conversation history
         context: Existing conversation context
         user_token: User JWT token for API calls
+        mall_token: Mall API token (if different from user_token)
 
     Returns:
         Final agent state with response
@@ -393,7 +395,8 @@ async def process_message(
         current_message=message,
         messages=history,
         context=context,
-        user_token=user_token
+        user_token=user_token,
+        mall_token=mall_token
     )
     
     # Get compiled graph

agent/core/state.py

@@ -66,6 +66,7 @@ class AgentState(TypedDict):
     user_id: str                      # User identifier
     account_id: str                   # B2B account identifier
     user_token: Optional[str]         # User JWT token for API calls
+    mall_token: Optional[str]         # Mall API token (if different from user_token)
     
     # ============ Message Content ============
     messages: list[dict[str, Any]]    # Conversation history [{role, content}]
@@ -117,7 +118,8 @@ def create_initial_state(
     current_message: str,
     messages: Optional[list[dict[str, Any]]] = None,
     context: Optional[dict[str, Any]] = None,
-    user_token: Optional[str] = None
+    user_token: Optional[str] = None,
+    mall_token: Optional[str] = None
 ) -> AgentState:
     """Create initial agent state for a new message
 
@@ -129,6 +131,7 @@ def create_initial_state(
         messages: Previous conversation history
         context: Existing conversation context
         user_token: User JWT token for API calls
+        mall_token: Mall API token (if different from user_token)
 
     Returns:
         Initialized AgentState
@@ -139,6 +142,7 @@ def create_initial_state(
         user_id=user_id,
         account_id=account_id,
         user_token=user_token,
+        mall_token=mall_token,
         
         # Messages
         messages=messages or [],