Added basic frontend (#1)

Reviewed-on: wrenn/sandbox#1
Co-authored-by: pptx704 <rafeed@omukk.dev>
Co-committed-by: pptx704 <rafeed@omukk.dev>

frontend/src/lib/api/client.ts

@@ -0,0 +1,24 @@
+import { auth } from '$lib/auth.svelte';
+
+export type ApiResult<T> = { ok: true; data: T } | { ok: false; error: string };
+
+export async function apiFetch<T>(method: string, path: string, body?: unknown): Promise<ApiResult<T>> {
+	try {
+		const headers: Record<string, string> = { 'Content-Type': 'application/json' };
+		if (auth.token) headers['Authorization'] = `Bearer ${auth.token}`;
+
+		const res = await fetch(path, {
+			method,
+			headers,
+			body: body ? JSON.stringify(body) : undefined
+		});
+
+		if (res.status === 204) return { ok: true, data: undefined as T };
+
+		const data = await res.json();
+		if (!res.ok) return { ok: false, error: data?.error?.message ?? 'Something went wrong' };
+		return { ok: true, data: data as T };
+	} catch {
+		return { ok: false, error: 'Unable to connect to the server' };
+	}
+}