Switch Discord notifications from webhook to user ID DMs

Uses the existing bot token to send DMs to users by their Discord user ID
instead of posting to a channel webhook.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

synculous-client/src/app/dashboard/settings/page.tsx

@@ -15,7 +15,7 @@ interface Preferences {
 }
 
 interface NotifSettings {
-  discord_webhook: string;
+  discord_user_id: string;
   discord_enabled: boolean;
   ntfy_topic: string;
   ntfy_enabled: boolean;
@@ -29,7 +29,7 @@ export default function SettingsPage() {
     celebration_style: 'standard',
   });
   const [notif, setNotif] = useState<NotifSettings>({
-    discord_webhook: '',
+    discord_user_id: '',
     discord_enabled: false,
     ntfy_topic: '',
     ntfy_enabled: false,
@@ -41,7 +41,7 @@ export default function SettingsPage() {
     Promise.all([
       api.preferences.get().then((data: Preferences) => setPrefs(data)),
       api.notifications.getSettings().then((data) => setNotif({
-        discord_webhook: data.discord_webhook,
+        discord_user_id: data.discord_user_id,
         discord_enabled: data.discord_enabled,
         ntfy_topic: data.ntfy_topic,
         ntfy_enabled: data.ntfy_enabled,
@@ -214,7 +214,7 @@ export default function SettingsPage() {
             <div className="flex items-center justify-between">
               <div>
                 <p className="font-medium text-gray-900">Discord</p>
-                <p className="text-sm text-gray-500">Send notifications to a Discord channel</p>
+                <p className="text-sm text-gray-500">Get DMs from the Synculous bot</p>
               </div>
               <button
                 onClick={() => updateNotif({ discord_enabled: !notif.discord_enabled })}
@@ -229,11 +229,11 @@ export default function SettingsPage() {
             </div>
             {notif.discord_enabled && (
               <input
-                type="url"
-                placeholder="Discord webhook URL"
-                value={notif.discord_webhook}
-                onChange={(e) => setNotif({ ...notif, discord_webhook: e.target.value })}
-                onBlur={() => updateNotif({ discord_webhook: notif.discord_webhook })}
+                type="text"
+                placeholder="Your Discord user ID"
+                value={notif.discord_user_id}
+                onChange={(e) => setNotif({ ...notif, discord_user_id: e.target.value })}
+                onBlur={() => updateNotif({ discord_user_id: notif.discord_user_id })}
                 className="w-full px-3 py-2 text-sm border border-gray-200 rounded-lg focus:outline-none focus:ring-2 focus:ring-indigo-500 focus:border-transparent text-gray-900 placeholder-gray-400"
               />
             )}