feat: route email notifications through mail capability

webui/src/api/notifications.ts

@@ -77,6 +77,8 @@ export type NotificationDeliveryResult = {
   notification?: NotificationMessage | null;
   processed: number;
   sent: number;
+  accepted: number;
+  paused: number;
   failed: number;
   skipped: number;
   errors: string[];

webui/src/features/notifications/NotificationCenterPage.tsx

@@ -4,9 +4,30 @@ import { AdminIconButton, Button, DismissibleAlert, SegmentedControl, SelectionL
 import { deliverPendingNotifications, listNotifications, updateNotification, type NotificationMessage } from "../../api/notifications";
 import { safeNotificationActionUrl } from "../../security/actionUrl";
 
-type StatusFilter = "all" | "pending" | "queued" | "sent" | "failed" | "skipped" | "cancelled";
+type StatusFilter =
+  | "all"
+  | "pending"
+  | "queued"
+  | "sending"
+  | "accepted"
+  | "paused"
+  | "sent"
+  | "failed"
+  | "skipped"
+  | "cancelled";
 
-const statusFilters: StatusFilter[] = ["all", "pending", "queued", "sent", "failed", "skipped", "cancelled"];
+const statusFilters: StatusFilter[] = [
+  "all",
+  "pending",
+  "queued",
+  "sending",
+  "accepted",
+  "paused",
+  "sent",
+  "failed",
+  "skipped",
+  "cancelled"
+];
 
 export default function NotificationCenterPage({ settings, auth }: { settings: ApiSettings; auth: AuthInfo }) {
   const [notifications, setNotifications] = useState<NotificationMessage[]>([]);

webui/src/features/notifications/NotificationSettingsPanel.tsx

@@ -176,7 +176,7 @@ export default function NotificationSettingsPanel({ settings, auth }: { settings
           </div>
           <ToggleSwitch
             label="Email notifications"
-            help="Prepared for mail-backed notification delivery."
+            help="Deliver production email through the optional Mail module. In-app notifications continue to work when Mail is unavailable."
             checked={draft.email_enabled}
             disabled={loading}
             onChange={(value) => setDraft((current) => ({ ...current, email_enabled: value, email_digest_enabled: value ? current.email_digest_enabled : false }))}