feat: support multiline console output and decode HTML entities

monitor.js

@@ -76,12 +76,37 @@ export function detectWarning(logLines) {
  * @returns {string}
  */
 export function safeDecode(text) {
-  if (typeof text !== "string" || !text.includes("%")) return text;
-  try {
-    return decodeURIComponent(text);
-  } catch (err) {
-    return text;
+  if (typeof text !== "string") return text;
+  let result = text;
+  if (result.includes("%")) {
+    try {
+      result = decodeURIComponent(result);
+    } catch (err) {
+      // Ignore decoding errors
+    }
   }
+  // Screeps console often contains HTML entities
+  return result
+    .replace(/&lt;/g, "<")
+    .replace(/&gt;/g, ">")
+    .replace(/&quot;/g, '"')
+    .replace(/&amp;/g, "&");
+}
+
+/**
+ * Outputs text to the action log, splitting by newline to ensure proper display.
+ *
+ * @param {string} text
+ * @param {"info"|"warning"|"error"} level
+ */
+export function outputMultiline(text, level = "info") {
+  if (!text) return;
+  const lines = text.split(/\r?\n/);
+  lines.forEach((line) => {
+    if (level === "error") core.error(line);
+    else if (level === "warning") core.warning(line);
+    else core.info(line);
+  });
 }
 
 // ────────────────────────────────────────────────────────────────────────────
@@ -185,7 +210,7 @@ export function handleConsoleEvent(event, opts, stdoutBuffer, state) {
     const warnPattern = /<font\s+color=['"](?:orange|yellow)['"]/i;
     logLines
       .filter((l) => warnPattern.test(l))
-      .forEach((l) => core.warning(safeDecode(l)));
+      .forEach((l) => outputMultiline(safeDecode(l), "warning"));
   }
 
   // ── Traceback detection in log lines (Screeps sometimes sends errors here) ─
@@ -200,7 +225,7 @@ export function handleConsoleEvent(event, opts, stdoutBuffer, state) {
     if (logToFile) {
       stdoutBuffer.push(...allStdout);
     } else {
-      allStdout.forEach((l) => core.info(l));
+      allStdout.forEach((l) => outputMultiline(l, "info"));
     }
   }
 
@@ -208,7 +233,7 @@ export function handleConsoleEvent(event, opts, stdoutBuffer, state) {
   if (errorText) {
     state.sawErrorLog = true;
     const decodedError = safeDecode(errorText);
-    core.error(decodedError);
+    outputMultiline(decodedError, "error");
     if (detectTraceback(decodedError)) {
       state.sawTraceback = true;
     }