change assert to throw an exception instead when service node has no peer stats enable.

update unit tests so it passes on debian sid

llarp/router/router.cpp

@@ -623,9 +623,9 @@ namespace llarp
       m_peerDb = std::make_shared<PeerDb>();
       m_peerDb->configure(conf.router);
     }
-    else
+    else if(IsServiceNode())
     {
-      assert(not IsServiceNode());  // enable peer stats must be enabled for service nodes
+      throw std::runtime_error("peer stats must be enabled when running as relay");
     }
 
     // Logging config

test/exit/test_llarp_exit_context.cpp

@@ -11,13 +11,14 @@ static const llarp::RuntimeOptions opts = {.background = false, .debug = false,
 std::shared_ptr<llarp::Context>
 make_context()
 {
-  llarp::Config conf;
+  llarp::Config conf{};
   conf.LoadDefault(true, fs::current_path());
 
   // set testing defaults
   conf.network.m_endpointType = "null";
   conf.bootstrap.skipBootstrap = true;
   conf.api.m_enableRPCServer = false;
+  conf.router.m_enablePeerStats = true;
   conf.router.m_publicAddress = llarp::IpAddress("1.1.1.1");
   // make a fake inbound link
   conf.links.m_InboundLinks.emplace_back();