Auto-reply: send timeout fallback and tests

src/auto-reply/reply.ts

@@ -386,6 +386,14 @@ export async function getReplyFromConfig(
 				console.error(
 					`Command auto-reply timed out after ${elapsed}ms (limit ${timeoutMs}ms)`,
 				);
+				const baseMsg = `Command timed out after ${timeoutSeconds}s. Try a shorter prompt or split the request.`;
+				const partial = errorObj.stdout?.trim();
+				const partialSnippet =
+					partial && partial.length > 800 ? `${partial.slice(0, 800)}...` : partial;
+				const text = partialSnippet
+					? `${baseMsg}\n\nPartial output before timeout:\n${partialSnippet}`
+					: baseMsg;
+				return { text };
 			} else {
 				logError(
 					`Command auto-reply failed after ${elapsed}ms: ${String(err)}`,