fix : correct api healthz

lib/health/services.ts

@@ -0,0 +1,31 @@
+import { lunarisVersionSchema } from "@/lib/catalog/version";
+import { discordWorkerHeartbeatKey, getRedisClient } from "@/lib/redis/client";
+
+export async function checkSlip2Go(signal: AbortSignal): Promise<void> {
+  const configuredUrl = process.env.SLIP2GO_VERIFY_URL;
+  if (!configuredUrl || !process.env.SLIP2GO_API_SECRET) throw new Error("Slip2Go is not configured.");
+  const url = new URL(configuredUrl);
+  if (url.protocol !== "https:") throw new Error("Slip2Go URL must use HTTPS.");
+  const response = await fetch(url, { method: "HEAD", cache: "no-store", signal });
+  // The verification endpoint requires a real slip, so a rejected HEAD request can still prove reachability.
+  if (!response.ok && ![400, 401, 403, 405, 415, 422].includes(response.status)) {
+    throw new Error(`Slip2Go returned ${response.status}.`);
+  }
+}
+
+export async function checkLunaris(signal: AbortSignal): Promise<void> {
+  const response = await fetch("https://api.lunaris.moe/data/version.json", { cache: "no-store", signal });
+  if (!response.ok) throw new Error(`Lunaris returned ${response.status}.`);
+  const body: unknown = await response.json();
+  if (typeof body !== "object" || body === null || !("version" in body)) {
+    throw new Error("Invalid Lunaris version response.");
+  }
+  lunarisVersionSchema.parse(body.version);
+}
+
+export async function checkDiscordBot(): Promise<void> {
+  const redis = await getRedisClient();
+  if (!(await redis.exists(discordWorkerHeartbeatKey()))) {
+    throw new Error("Discord worker heartbeat is missing.");
+  }
+}