alerts: per-support-team webhook + printedparts routing

shopdb/utils/mailer.py

@@ -225,16 +225,18 @@ def _webhook_payload(fmt, title, text):
     }
 
 
-def send_webhook(title, text):
-    """POST an alert to the configured webhook (Teams, etc.). Best-effort:
-    returns (ok, error); a no-op ((False, None)) when no URL is configured, and
-    never raises so it can never block the caller."""
+def send_webhook(title, text, url=None):
+    """POST an alert to a webhook (Teams, etc.). `url` overrides the site
+    alert_webhook_url (e.g. a support team's own webhook); the payload format
+    still follows alert_webhook_format. Best-effort: returns (ok, error), a
+    no-op ((False, None)) when no URL resolves, and never raises."""
     config = get_webhook_config()
-    if not config['url']:
+    target = (url or '').strip() or config['url']
+    if not target:
         return False, None
     try:
         response = requests.post(
-            config['url'], json=_webhook_payload(config['format'], title, text),
+            target, json=_webhook_payload(config['format'], title, text),
             timeout=10)
         if response.status_code >= 400:
             return False, f'HTTP {response.status_code}'