fix(core): 修复恢复Uri模式任务时目标丢失导致的NPE

- 从持久化实体恢复DTaskWrapper的fileUri
- 启动任务前校验下载目标有效性
- 在适配器中兜底恢复Uri并校验文件路径
- 版本号更新为3.8.17-beta-1

build.gradle

@@ -56,8 +56,8 @@ task clean(type: Delete) {
 }
 
 ext {
-    versionCode = 390
-    versionName = '3.8.16-beta-1'
+    versionCode = 391
+    versionName = '3.8.17-beta-1'
     userOrg = 'arialyy'
     groupId = 'com.arialyy.aria'
     publishVersion = versionName
@@ -70,7 +70,7 @@ ext {
     licences = ['Apache-2.0']
 
     // mavenCentral
-    mavenVersion = '3.8.16'
+    mavenVersion = '3.8.17'
     mavenCentralGroupId = 'me.laoyuyu.aria'
     mavenCentralUserID = 'laoyuyu'
     mavenCentralUserName = 'laoyuyu'