fix(cron): show delivery failure inline with last-run status

When a cron job's agent run succeeds but delivery to a channel
(Discord, Telegram, etc.) fails, `last_status` is "ok" while
`last_delivery_error` holds the failure reason.  The previous display
printed a separate yellow warning line that was easy to miss — the
status cell still showed a plain green "ok", making the job look
healthy at a glance.

This commit surfaces the failure directly in the status cell:

  hermes_cli/cron.py (`hermes cron list`)
    "ok" → "ok  ⚠ delivery failed" (green + yellow) when
    `last_delivery_error` is set; the detail line below is kept.

  cli.py (in-chat /cron list)
    Status string becomes "ok ⚠ delivery failed" and a
    "Delivery error: …" line is printed below it.

No changes to cron/jobs.py or the data model — `last_status` still
reflects agent execution only, per the maintainer design decision.

Fixes #5861

cli.py

@@ -5339,7 +5339,12 @@ class HermesCLI:
                     print(f"  Skills: {', '.join(job['skills'])}")
                 print(f"  Prompt: {job.get('prompt_preview', '')}")
                 if job.get("last_run_at"):
-                    print(f"  Last run: {job['last_run_at']} ({job.get('last_status', '?')})")
+                    delivery_err = job.get("last_delivery_error")
+                    last_status = job.get("last_status", "?")
+                    status_str = f"{last_status} ⚠ delivery failed" if (last_status == "ok" and delivery_err) else last_status
+                    print(f"  Last run: {job['last_run_at']} ({status_str})")
+                    if delivery_err:
+                        print(f"  Delivery error: {delivery_err}")
                 print()
             return
 

hermes_cli/cron.py

@@ -96,15 +96,17 @@ def cron_list(show_all: bool = False):
 
         # Execution history
         last_status = job.get("last_status")
+        delivery_err = job.get("last_delivery_error")
         if last_status:
             last_run = job.get("last_run_at", "?")
             if last_status == "ok":
-                status_display = color("ok", Colors.GREEN)
+                if delivery_err:
+                    status_display = color("ok", Colors.GREEN) + "  " + color("⚠ delivery failed", Colors.YELLOW)
+                else:
+                    status_display = color("ok", Colors.GREEN)
             else:
                 status_display = color(f"{last_status}: {job.get('last_error', '?')}", Colors.RED)
             print(f"    Last run:  {last_run}  {status_display}")
-
-        delivery_err = job.get("last_delivery_error")
         if delivery_err:
             print(f"    {color('⚠ Delivery failed:', Colors.YELLOW)} {delivery_err}")