图层修改

Co-authored-by: Cursor <cursoragent@cursor.com>

assets/scripts/level/LevelConfigMerge.ts

@@ -58,7 +58,8 @@ export function mergeLevelConfigWithMapData(config: LevelConfig, levelRoot: Node
 
     return {
         ...config,
-        theme: prefabTheme || config.theme?.trim() || config.theme,
+        // DB 主题优先（主站批次权威）；预制体仅作缺省回退
+        theme: config.theme?.trim() || prefabTheme || 'silu',
         ground: pickGround(
             prefabGround as LevelConfig['ground'],
             config.ground,