Automated crawl hook + staging/production + all critical fixes #4005

Originally written by @ccantynz-alt on GitHub.
Imported from https://github.com/ccantynz-alt/48co.v1/pull/32

Summary

Fixes all critical blockers from the full audit + sets up automated error prevention.

Automated Error Crawl (the "smoking gun agent")

• Stop hook: Automatically crawls after every Claude session — checks broken imports, missing files, manifest errors
• SessionStart hook: Reminds Claude to scan before building
• These run automatically via .claude/settings.json — no more manual audits

Staging/Production Split (blue-green deployment)

• deploy-api.yml: Staging auto-deploys, production requires manual approval
• deploy-website.yml: Website auto-deploys on push
• Customers NEVER see broken code

Critical Fixes

• API server exits with FATAL error if CLAUDE_API_KEY not set (was failing silently)
• Dockerfile for containerized API deployment
• CLAUDE.md updated with deployment protocol and crawl rules

https://claude.ai/code/session_01PBeNmPHrD2W6A2YKZRC7V3