Claude Code: Fix worker env injection - add ANTHROPIC_API_KEY and CLAUDE_API_KEY to env config

Claude Code: Fix silent worker loop initialization failure

Claude Code: Add missing AGENT_MODE and WORKER_START_TIMEOUT to .env

Claude Code: Improve defensive .env handling with robust error logging

Claude Code: Add defensive .env initialization to prevent FileNotFoundError on missing .env

Claude Code: Cain is running successfully. Let's implement a robust error logging sys