make router tick 250ms instead of 100ms to prevent excessive log spam

limit calls to decommissioned warning to every 30s to prevent excessive log spam

llarp/router/router.cpp

@@ -42,7 +42,7 @@
 
 #include <oxenmq/oxenmq.h>
 
-static constexpr std::chrono::milliseconds ROUTER_TICK_INTERVAL = 100ms;
+static constexpr std::chrono::milliseconds ROUTER_TICK_INTERVAL = 250ms;
 
 namespace llarp
 {
@@ -885,7 +885,12 @@ namespace llarp
     if (decom)
     {
       // complain about being deregistered
-      LogError("We are running as a service node but we seem to be decommissioned");
+      if (now >= m_NextDecommissionWarn)
+      {
+        constexpr auto DecommissionWarnInterval = 30s;
+        LogError("We are running as a service node but we seem to be decommissioned");
+        m_NextDecommissionWarn = now + DecommissionWarnInterval;
+      }
     }
     else if (connected < connectToNum)
     {

llarp/router/router.hpp

@@ -539,7 +539,7 @@ namespace llarp
     bool m_isServiceNode = false;
 
     llarp_time_t m_LastStatsReport = 0s;
-
+    llarp_time_t m_NextDecommissionWarn = 0s;
     std::shared_ptr<llarp::KeyManager> m_keyManager;
     std::shared_ptr<PeerDb> m_peerDb;