fix: 修复完整镜像源地址及 CRLF 任务导入 (#3093)

* fix: address six verified legacy issue regressions

* fix: limit issue patch to mirror URLs and CRLF imports

* fix: preserve APT formats and third-party repositories

cli/test/internal/subscriptionRunner.test.cjs

@@ -409,7 +409,7 @@ test('cron metadata precedence agrees with unchanged legacy add_cron', (t) => {
         '--noprofile',
         '--norc',
         '-c',
-        `${definition}\nt() { :; }\nnotify_api() { :; }\nadd_cron_api() { printf '%s' "$1"; }\nadd_cron "$dir_scripts/list" repo`,
+        `${definition}\nt() { :; }\nnotify_api() { :; }\nadd_cron_api() { printf '%s:%s:%s:%s' "$1" "$2" "$3" "$4"; }\nadd_cron "$dir_scripts/list" repo`,
       ],
       {
         encoding: 'utf8',