feat: add promote admin script to manage user roles

package.json

@@ -18,6 +18,7 @@
 		"db:studio": "drizzle-kit studio",
 		"db:import": "npx tsx scripts/import-json.ts",
 		"db:set-daily-mode": "npx tsx scripts/set-daily-mode.ts",
+		"user:promote-admin": "npx tsx scripts/promote-admin.ts",
 		"auth:schema": "npx @better-auth/cli generate --config src/lib/server/auth.ts --output src/lib/server/db/auth.schema.ts --yes",
 		"scrape": "npx tsx scripts/scrape-onepiece.ts"
 	},

scripts/promote-admin.ts

@@ -0,0 +1,55 @@
+import { createClient } from '@libsql/client';
+import { drizzle } from 'drizzle-orm/libsql';
+import { eq } from 'drizzle-orm';
+import { user } from '../src/lib/server/db/auth.schema';
+
+const DATABASE_URL = process.env.DATABASE_URL || 'file:local.db';
+
+function getErrorMessage(error: unknown): string {
+	return error instanceof Error ? error.message : String(error);
+}
+
+async function promoteAdmin(): Promise<void> {
+	const email = process.argv[2]?.trim();
+
+	if (!email) {
+		console.error('❌ Missing email argument');
+		console.error('Usage: npm run user:promote-admin -- <email>');
+		process.exit(1);
+	}
+
+	const client = createClient({ url: DATABASE_URL });
+	const db = drizzle(client);
+
+	try {
+		const existingUsers = await db.select().from(user).where(eq(user.email, email)).limit(1);
+		const targetUser = existingUsers[0];
+
+		if (!targetUser) {
+			console.error(`❌ User not found for email: ${email}`);
+			process.exit(1);
+		}
+
+		if (targetUser.isAdmin) {
+			console.log(`ℹ️ User is already admin: ${targetUser.email}`);
+			return;
+		}
+
+		await db
+			.update(user)
+			.set({ isAdmin: true })
+			.where(eq(user.id, targetUser.id));
+
+		console.log(`✅ Admin granted to: ${targetUser.email}`);
+	} catch (error) {
+		console.error(`❌ Failed to promote admin: ${getErrorMessage(error)}`);
+		process.exit(1);
+	} finally {
+		client.close();
+	}
+}
+
+promoteAdmin().catch((error) => {
+	console.error(getErrorMessage(error));
+	process.exit(1);
+});