fix: read approvals.timeout from config in CLI approval callback

The _approval_callback method in HermesCLI hardcoded timeout=60
instead of reading the approvals.timeout config value. This meant
the config setting was silently ignored for CLI interactive prompts.

Other approval paths (callbacks.py, tools/approval.py) already read
the config correctly — only cli.py was missed.

cli.py

@@ -10064,7 +10064,7 @@ class HermesCLI:
         import time as _time
 
         with self._approval_lock:
-            timeout = 60
+            timeout = int(CLI_CONFIG.get("approvals", {}).get("timeout", 60))
             response_queue = queue.Queue()
 
             self._approval_state = {