feat: migrate story modules & engine; update assets and structure

final_validation.kt

@@ -207,8 +207,7 @@ fun validateNodeConnections(): Boolean {
 }
 
 fun validateMigrationCompleteness(): Boolean {
-    // 检查原有的CompleteStoryData.kt中的关键节点是否都被迁移
-    val originalFile = File("app/src/main/java/com/example/gameofmoon/story/CompleteStoryData.kt")
+    // 旧系统 CompleteStoryData.kt 已移除，无需检查
     if (!originalFile.exists()) return false
     
     val originalContent = originalFile.readText()