feat(#54): Add credit usage dashboard

src/routes/(user)/credits/+page.server.ts

@@ -0,0 +1,29 @@
+import { redirect } from '@sveltejs/kit';
+import { getUserCredits, getUserCreditTransactions } from '$lib/utils/supabase/admin';
+
+export async function load({ locals: { safeGetSession } }) {
+	const { session } = await safeGetSession();
+
+	if (!session) {
+		redirect(303, '/');
+	}
+
+	const userId = session.user?.id;
+	if (!userId) {
+		return { error: 'User not authenticated' };
+	}
+
+	try {
+		const creditsRemaining = await getUserCredits(userId);
+		const transactions = await getUserCreditTransactions(userId);
+
+		return {
+			creditsRemaining,
+			transactions
+		};
+	} catch (error) {
+		return {
+			error: error.message
+		};
+	}
+}