GROQ_API_KEY=your_groq_api_key_here GROQ_MODEL=llama-3.1-8b-instant DATABASE_PATH=chatbot.db MAX_RECENT_MESSAGES=12 MAX_CONTEXT_TOKENS=350 MAX_OUTPUT_TOKENS=500 TEMPERATURE=0.7 LLM_TIMEOUT_SECONDS=30 LLM_RETRY_ATTEMPTS=2 SUMMARY_TRIGGER_MESSAGES=12 SUMMARY_INTERVAL_MESSAGES=6 INPUT_COST_PER_MILLION_TOKENS=0 OUTPUT_COST_PER_MILLION_TOKENS=0