The health check script was not using the REDIS_HOST_PASSWORD environment variable when checking Redis connectivity, causing failures when Redis is password-protected. Now properly detects and uses the password from .env when available. Also includes minor cleanup in backup.sh (formatting and redundant log removal). 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>