fix: 修复 CopyOrderTrackingService 和 CopyTradingService 的 @Transactional 自调用问题

1. CopyOrderTrackingService 修复
   - 实现 ApplicationContextAware 接口
   - 添加 getSelf() 方法获取代理对象
   - 在 processTrade() 中通过代理调用 processBuyTrade() 和 processSellTrade()
   - 确保两个子方法的 @Transactional 生效

2. CopyTradingService 修复
   - 实现 ApplicationContextAware 接口
   - 添加 getSelf() 方法获取代理对象
   - 在 updateCopyTradingStatus() 中通过代理调用 updateCopyTrading()
   - 确保内部调用的 @Transactional 生效

修改的文件：
- CopyOrderTrackingService.kt
- CopyTradingService.kt

backend/src/main/kotlin/com/wrbug/polymarketbot/service/copytrading/configs/CopyTradingService.kt

@@ -14,6 +14,8 @@ import com.wrbug.polymarketbot.util.IllegalBigDecimal
 import com.wrbug.polymarketbot.util.JsonUtils
 import com.wrbug.polymarketbot.util.toSafeBigDecimal
 import org.slf4j.LoggerFactory
+import org.springframework.context.ApplicationContext
+import org.springframework.context.ApplicationContextAware
 import org.springframework.stereotype.Service
 import org.springframework.transaction.annotation.Transactional
 import java.math.BigDecimal
@@ -30,10 +32,24 @@ class CopyTradingService(
     private val monitorService: CopyTradingMonitorService,
     private val jsonUtils: JsonUtils,
     private val gson: Gson
-) {
-    
+) : ApplicationContextAware {
+
     private val logger = LoggerFactory.getLogger(CopyTradingService::class.java)
     
+    private var applicationContext: ApplicationContext? = null
+    
+    override fun setApplicationContext(applicationContext: ApplicationContext) {
+        this.applicationContext = applicationContext
+    }
+    
+    /**
+     * 获取代理对象，用于解决 @Transactional 自调用问题
+     */
+    private fun getSelf(): CopyTradingService {
+        return applicationContext?.getBean(CopyTradingService::class.java)
+            ?: throw IllegalStateException("ApplicationContext not initialized")
+    }
+    
     /**
      * 创建跟单配置
      * 支持两种方式：
@@ -331,7 +347,7 @@ class CopyTradingService(
      */
     @Transactional
     fun updateCopyTradingStatus(request: CopyTradingUpdateStatusRequest): Result<CopyTradingDto> {
-        return updateCopyTrading(
+        return getSelf().updateCopyTrading(
             CopyTradingUpdateRequest(
                 copyTradingId = request.copyTradingId,
                 enabled = request.enabled

backend/src/main/kotlin/com/wrbug/polymarketbot/service/copytrading/statistics/CopyOrderTrackingService.kt

@@ -23,6 +23,8 @@ import com.wrbug.polymarketbot.service.common.MarketService
 import com.wrbug.polymarketbot.service.common.PolymarketClobService
 import com.wrbug.polymarketbot.service.system.TelegramNotificationService
 import com.wrbug.polymarketbot.util.CryptoUtils
+import org.springframework.context.ApplicationContext
+import org.springframework.context.ApplicationContextAware
 import org.springframework.stereotype.Service
 import org.springframework.transaction.annotation.Transactional
 import java.math.BigDecimal
@@ -51,12 +53,26 @@ open class CopyOrderTrackingService(
     private val cryptoUtils: CryptoUtils,
     private val marketService: MarketService,  // 市场信息服务
     private val telegramNotificationService: TelegramNotificationService? = null  // 可选，避免循环依赖
-) {
+) : ApplicationContextAware {
 
     private val logger = LoggerFactory.getLogger(CopyOrderTrackingService::class.java)
 
     // 协程作用域（用于异步发送通知）
     private val notificationScope = CoroutineScope(Dispatchers.IO + SupervisorJob())
+    
+    private var applicationContext: ApplicationContext? = null
+    
+    override fun setApplicationContext(applicationContext: ApplicationContext) {
+        this.applicationContext = applicationContext
+    }
+    
+    /**
+     * 获取代理对象，用于解决 @Transactional 自调用问题
+     */
+    private fun getSelf(): CopyOrderTrackingService {
+        return applicationContext?.getBean(CopyOrderTrackingService::class.java)
+            ?: throw IllegalStateException("ApplicationContext not initialized")
+    }
 
     // 使用 Mutex 保证线程安全（按交易ID锁定）
     private val tradeMutexMap = ConcurrentHashMap<String, Mutex>()
@@ -138,10 +154,11 @@ open class CopyOrderTrackingService(
                     return@withLock Result.success(Unit)
                 }
 
-                // 2. 处理交易逻辑
+                // 2. 处理交易逻辑（通过代理对象调用，确保 @Transactional 生效）
+                val self = getSelf()
                 val result = when (trade.side.uppercase()) {
-                    "BUY" -> processBuyTrade(leaderId, trade, source)
-                    "SELL" -> processSellTrade(leaderId, trade)
+                    "BUY" -> self.processBuyTrade(leaderId, trade, source)
+                    "SELL" -> self.processSellTrade(leaderId, trade)
                     else -> {
                         logger.warn("未知的交易方向: ${trade.side}")
                         Result.failure(IllegalArgumentException("未知的交易方向: ${trade.side}"))