feat: deliver v1.8.0 harness reliability and parity updates

scripts/hooks/session-end-marker.js

@@ -0,0 +1,15 @@
+#!/usr/bin/env node
+'use strict';
+
+const MAX_STDIN = 1024 * 1024;
+let raw = '';
+process.stdin.setEncoding('utf8');
+process.stdin.on('data', chunk => {
+  if (raw.length < MAX_STDIN) {
+    const remaining = MAX_STDIN - raw.length;
+    raw += chunk.substring(0, remaining);
+  }
+});
+process.stdin.on('end', () => {
+  process.stdout.write(raw);
+});