feat: 图片模板缓存

fs-service/src/main/java/com/fs/utils/FileCacheService.java

@@ -12,10 +12,10 @@ import java.nio.file.Paths;
 @Service
 public class FileCacheService {
 
-    @Value("${getTuiImg}")
+    @Value("${getTuiImg:''}")
     private String getTuiImg;
 
-    @Value("${getTuiFont}")
+    @Value("${getTuiFont:''}")
     private String getTuiFont;
 
     @Value("${tuiImgCache:0}")