fix: ensure standard PATH is available for external CLIs (#285)

Some environments (GUI apps, cron, IDE terminals) launch with a minimal
PATH that excludes standard directories like /usr/local/bin and /usr/sbin.
This causes external CLIs to fail when they try to run system commands
(e.g. sysctl).

Fix by ensuring standard system paths exist in process.env.PATH at
startup. This is a one-time fix that benefits ALL child processes —
isBinaryInstalled(), installExternalCli(), daemon spawn, etc. — without
needing per-call env patching.

Fixes #284

Co-authored-by: jackwener <jakevingoo@gmail.com>

Author: jicaiji1-max

src/main.ts

@@ -3,6 +3,16 @@
  * opencli — Make any website your CLI. AI-powered.
  */
 
+// Ensure standard system paths are available for child processes.
+// Some environments (GUI apps, cron, IDE terminals) launch with a minimal PATH
+// that excludes /usr/local/bin, /usr/sbin, etc., causing external CLIs to fail.
+if (process.platform !== 'win32') {
+  const std = ['/usr/local/bin', '/usr/bin', '/bin', '/usr/sbin', '/sbin'];
+  const cur = new Set((process.env.PATH ?? '').split(':').filter(Boolean));
+  for (const p of std) cur.add(p);
+  process.env.PATH = [...cur].join(':');
+}
+
 import * as os from 'node:os';
 import * as path from 'node:path';
 import { fileURLToPath } from 'node:url';