fix(cron): resolve human-friendly delivery labels via channel directory (#3860)

Cron jobs configured with deliver labels from send_message(action='list')
like 'whatsapp:Alice (dm)' passed the label as a literal chat_id.
WhatsApp bridge failed with jidDecode error since 'Alice (dm)' isn't
a valid JID.

Now _resolve_delivery_target() strips display suffixes like ' (dm)' and
resolves human-friendly names via the channel directory before using
them. Raw IDs pass through unchanged when the directory has no match.

Fixes #1945.

cron/scheduler.py

@@ -87,6 +87,22 @@ def _resolve_delivery_target(job: dict) -> Optional[dict]:
             chat_id, thread_id = rest.split(":", 1)
         else:
             chat_id, thread_id = rest, None
+
+        # Resolve human-friendly labels like "Alice (dm)" to real IDs.
+        # send_message(action="list") shows labels with display suffixes
+        # that aren't valid platform IDs (e.g. WhatsApp JIDs).
+        try:
+            from gateway.channel_directory import resolve_channel_name
+            target = chat_id
+            # Strip display suffix like " (dm)" or " (group)"
+            if target.endswith(")") and " (" in target:
+                target = target.rsplit(" (", 1)[0].strip()
+            resolved = resolve_channel_name(platform_name.lower(), target)
+            if resolved:
+                chat_id = resolved
+        except Exception:
+            pass
+
         return {
             "platform": platform_name,
             "chat_id": chat_id,