fix: extend edge trace idle timeout (#1346)

cmd/hwlab-edge-proxy/main.test.ts

@@ -14,6 +14,7 @@ test("edge proxy reports local health and proxies live health to upstream", asyn
     assert.equal(health.status, "ok");
     assert.equal(health.service.role, "public-dev-ingress");
     assert.equal(health.details.upstream, `http://127.0.0.1:${upstream.port}`);
+    assert.equal(health.details.idleTimeoutSeconds, 120);
     assert.equal(health.details.mode, "dev-edge-proxy");
 
     const routes = await fetchJson(`http://127.0.0.1:${proxy.port}/routes`);

cmd/hwlab-edge-proxy/main.ts

@@ -10,6 +10,10 @@ const proxyTimeoutMs = parseTimeout(process.env.HWLAB_EDGE_PROXY_TIMEOUT_MS, 126
   min: 1000,
   max: 2400000
 });
+const idleTimeoutSeconds = parseTimeout(process.env.HWLAB_EDGE_IDLE_TIMEOUT_SECONDS, 120, {
+  min: 1,
+  max: 255
+});
 const { host, port } = resolveHostPort({
   listenEnv: "HWLAB_EDGE_LISTEN",
   hostEnv: "HWLAB_EDGE_HOST",
@@ -21,6 +25,7 @@ function proxyDetails() {
   return {
     upstream,
     timeoutMs: proxyTimeoutMs,
+    idleTimeoutSeconds,
     mode: "dev-edge-proxy"
   };
 }
@@ -34,6 +39,7 @@ function parseTimeout(value, fallback, { min, max }) {
 const server = Bun.serve({
   hostname: host,
   port,
+  idleTimeout: idleTimeoutSeconds,
   async fetch(request, bunServer) {
     const url = new URL(request.url);