db/users: add `admin` column

src/db.ts

@@ -39,6 +39,7 @@ interface UserRow {
   pubkey: string;
   username: string;
   inserted_at: Date;
+  admin: boolean;
 }
 
 interface RelayRow {

src/db/migrations/003_events_admin.ts

@@ -0,0 +1,12 @@
+import { Kysely } from '@/deps.ts';
+
+export async function up(db: Kysely<any>): Promise<void> {
+  await db.schema
+    .alterTable('users')
+    .addColumn('admin', 'boolean', (col) => col.defaultTo(false))
+    .execute();
+}
+
+export async function down(db: Kysely<any>): Promise<void> {
+  await db.schema.dropTable('relays').execute();
+}