fix(monitor): use global console channel and implement shard filtering

monitor.js

@@ -29,8 +29,9 @@ export function isOfficialServer(hostname) {
  * @returns {string}
  */
 export function buildSubscribePath(hostname, shard) {
-  if (shard) return `${shard}/console`;
-  return isOfficialServer(hostname) ? "shard0/console" : "console";
+  // The console channel on Screeps official and most private servers is 'console'.
+  // We subscribe to the aggregate feed and filter by shard in handleConsoleEvent.
+  return "console";
 }
 
 /**
@@ -178,8 +179,15 @@ export async function uploadLogArtifact(
  * @param {{ sawTraceback: boolean, sawErrorLog: boolean, sawWarningLog: boolean }} state
  */
 export function handleConsoleEvent(event, opts, stdoutBuffer, state) {
-  const { logToFile } = opts;
+  const { logToFile, shard: targetShard } = opts;
   const data = event?.data ?? {};
+
+  // Shard filtering: If a shard is specified in opts, only process messages from that shard.
+  // Official server events include a 'shard' property in event.data.
+  if (targetShard && data.shard && data.shard !== targetShard) {
+    return;
+  }
+
   const logLines = data?.messages?.log ?? [];
   const results = data?.messages?.results ?? [];
   const errorText = data?.error ?? null;