[gemini] Implement POST /api/relay/policy endpoint (#46) (#99)

artifacts/api-server/src/app.ts

@@ -5,6 +5,7 @@ import { fileURLToPath } from "url";
 import router from "./routes/index.js";
 import bootstrapRouter from "./routes/bootstrap.js"; // New: Bootstrap routes
 import adminRelayPanelRouter from "./routes/admin-relay-panel.js";
+import relayPolicyRouter from "./routes/relay-policy.js";
 import { requestIdMiddleware } from "./middlewares/request-id.js";
 import { responseTimeMiddleware } from "./middlewares/response-time.js";
 
@@ -57,6 +58,7 @@ app.use(responseTimeMiddleware);
 
 app.use("/api", router);
 app.use("/api", bootstrapRouter); // New: Mount bootstrap routes
+app.use("/api", relayPolicyRouter);
 
 // ── Relay admin panel at /admin/relay ────────────────────────────────────────
 // Served outside /api so the URL is clean: /admin/relay (not /api/admin/relay).