feat(admin/users): show all auth sources when a user has multiple credentials

listUsers() now LEFT JOINs local_credentials and returns has_local_credentials.
The auth source cell renders both the primary auth_source badge and a secondary
Local badge when an OIDC user also has local credentials set.

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

src/lib/server/users.ts

@@ -27,12 +27,16 @@ const normalizeEmail = (value?: string | null): string | null | undefined => {
 	return trimmed ? trimmed : null;
 };
 
-export function listUsers(): AppUser[] {
-	return db.all<AppUser>(
-		`SELECT id, username, full_name, email, auth_source, created_at, updated_at
-		 FROM users
-		 ORDER BY username COLLATE NOCASE`
-	);
+export function listUsers(): (AppUser & { has_local_credentials: boolean })[] {
+	return db
+		.all<AppUser & { has_local_credentials: 0 | 1 }>(
+			`SELECT u.id, u.username, u.full_name, u.email, u.auth_source, u.created_at, u.updated_at,
+			        CASE WHEN lc.user_id IS NOT NULL THEN 1 ELSE 0 END AS has_local_credentials
+			 FROM users u
+			 LEFT JOIN local_credentials lc ON lc.user_id = u.id
+			 ORDER BY u.username COLLATE NOCASE`
+		)
+		.map((row) => ({ ...row, has_local_credentials: row.has_local_credentials === 1 }));
 }
 
 export function upsertUserFromAuth(input: {

src/routes/(protected)/admin/users/+page.svelte

@@ -8,6 +8,7 @@
 		full_name: string;
 		email: string | null;
 		auth_source: string;
+		has_local_credentials: boolean;
 	}
 
 	let users = $state<User[]>([]);
@@ -340,9 +341,16 @@
 									{user.email || '—'}
 								</td>
 								<td class="px-4 py-3">
+									<div class="flex flex-wrap gap-1">
 										<span class="rounded bg-gray-100 px-2 py-0.5 text-xs font-medium text-gray-700"
 											>{user.auth_source}</span
 										>
+										{#if user.has_local_credentials && user.auth_source !== 'Local'}
+											<span class="rounded bg-blue-100 px-2 py-0.5 text-xs font-medium text-blue-700"
+												>Local</span
+											>
+										{/if}
+									</div>
 								</td>
 								<td class="px-4 py-3 text-right">
 									<div class="inline-flex items-center gap-1">