initial relay scaffold

server/routes/health.js

@@ -0,0 +1,27 @@
+// GET /relay/health — public liveness check. No auth, no credit
+// accounting. Returns a minimal status object so monitoring + Recap's
+// /api/relay/status can verify the relay is reachable.
+
+import express from "express";
+import { getConfigSnapshot } from "../config.js";
+
+export function healthRouter() {
+  const router = express.Router();
+
+  router.get("/health", async (_req, res) => {
+    const cfg = await getConfigSnapshot();
+    res.json({
+      ok: true,
+      service: "recap-relay",
+      version: "0.1.0",
+      backends: {
+        gemini: !!cfg.relay_gemini_api_key,
+        parakeet: !!cfg.relay_parakeet_base_url,
+        gemma: !!cfg.relay_gemma_base_url,
+      },
+      admin_enabled: !!cfg.relay_admin_password_hash,
+    });
+  });
+
+  return router;
+}