adds search support with exa

server/src/search/exa.ts

@@ -0,0 +1,14 @@
+import { Exa } from "exa-js";
+import { env } from "../env.js";
+
+let client: Exa | null = null;
+
+export function exaClient() {
+  if (!env.EXA_API_KEY) {
+    throw new Error("EXA_API_KEY not set");
+  }
+  if (!client) {
+    client = new Exa(env.EXA_API_KEY);
+  }
+  return client;
+}