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/logPath.ts

@@ -0,0 +1,11 @@
+import { resolveFileAccess } from './fileAccess';
+
+/** Check stored paths too: old database rows are not trusted input. */
+export function resolveLogPath(root: string, value: string): string {
+  const target = resolveFileAccess(root, [value]);
+  if (!target)
+    throw Object.assign(new Error('Log path is outside the log directory'), {
+      status: 400,
+    });
+  return target;
+}