docs(task): actionType 注释补充 diet/sleep/exercise 取值

cfc-backend/src/main/java/com/etotem/cfc/dto/CreateTaskDTO.java

@@ -63,7 +63,7 @@ public class CreateTaskDTO {
     // TASK-SYS-248: 后置任务IDs JSON: [1,2,3]，任意一个完成则解锁（OR 逻辑）
     private String successorTaskIds;
 
-    // TASK-SYS-248: 联动动作: minigame/focus/survey/article/activity/cart/order
+    // TASK-SYS-248: 联动动作: minigame/focus/survey/article/activity/cart/order/diet/sleep/exercise
     private String actionType;
 
     // TASK-SYS-248: 联动参数JSON

cfc-backend/src/main/java/com/etotem/cfc/entity/Task.java

@@ -127,7 +127,7 @@ private Date acceptDeadline;
     /** TASK-SYS-248: 后置任务IDs JSON: [1,2,3]，任意一个完成则解锁（OR 逻辑） */
     private String successorTaskIds;
 
-    /** TASK-SYS-248: 联动动作: minigame/focus/survey/article/activity/cart/order */
+    /** TASK-SYS-248: 联动动作: minigame/focus/survey/article/activity/cart/order/diet/sleep/exercise */
     private String actionType;
 
     /** TASK-SYS-248: 联动参数JSON: {"gameCode":"schulte","productId":123,"minSeconds":30,"completeMilestone":"paid","surveyId":99} */