v2026.5.7: 25 Fixes Zero Features

Every OpenClaw release from v2026.4.23 through v2026.4.29 broke production for thousands of users. Gateway crashes, Discord heartbeat failures, plugin dependency loops, 13-minute silent hangs on first boot. The v2026.5.x series shipped 75+ fixes with zero new features to recover. Operators currently have no way to test a new release against their actual running config (plugins, channels, models, cron jobs) before committing. This tool spins up a sandboxed OpenClaw instance mirroring your live config, runs the new release against it, executes a regression suite (channel connectivity, gateway response time, plugin load, cron fire), and either greenlights or blocks the update with a detailed diff of what broke.