# OpenRouter API key (required for LLM calls)
OPENROUTER_API_KEY=your-openrouter-api-key-here

# Optional: Override default models
# CLAUDE_MODEL=anthropic/claude-sonnet-4
# GPT_MODEL=openai/gpt-4o
# GROK_MODEL=x-ai/grok-3
# GEMINI_MODEL=google/gemini-2.0-flash-001