Reorganize modules into layered directories

runtime/request-timeout.js

@@ -0,0 +1,9 @@
+export function resolveConfiguredTimeoutMs(
+  settings = {},
+  fallbackMs = 300000,
+) {
+  const timeoutMs = Number(settings?.timeoutMs);
+  return Number.isFinite(timeoutMs) && timeoutMs > 0
+    ? timeoutMs
+    : fallbackMs;
+}