- health-checker.js: Strip response headers from history, cap at 500 entries per service, compact JSON save - resource-monitor.js: Cap at 500 entries per container, compact JSON save - middleware.js: Block sensitive API routes from external access when TOTP disabled - Caddyfile: Add health probe routes (/healthz, /readyz, /csrf-token) before SPA fallback - MCP bridge: Fix internal IP leak in .well-known/mcp.json Found during comprehensive QA audit of test.dashcaddy.net.