fix: 加固安全输入边界并修复订阅兼容性 (#3084)

* fix: harden scoped API inputs and isolate login throttling

* fix: close script path gaps and harden security boundaries

* fix: preserve subscription aliases and avoid extension eval

* fix: allow cancelling invalid historical subscriptions

* fix: make script parent validation explicit for CodeQL

* fix: limit command execution and clarify trusted path branches

* fix: separate diff tool script access from config APIs

* fix: clean up obsolete subscription SSH credentials

back/shared/cronCommand.ts

@@ -0,0 +1,11 @@
+// Match command text literally: looking up a task must never execute its input.
+export function findCronId(crontab: string, command: string): string {
+  if (!command) return '';
+  for (const line of crontab.split('\n')) {
+    const id = /\bID=(\d+)\s/.exec(line);
+    if (id && line.includes(command, id.index + id[0].length)) {
+      return id[1];
+    }
+  }
+  return '';
+}