LLM_API_KEY=your-api-key-here
LLM_BASE_URL=https://api.openai.com/v1
LLM_MODEL=gpt-4o-mini
SEARXNG_BASE_URL=https://searxng.erhe.top
SEARXNG_TOKEN=your-searxng-token-here
SEARXNG_TIMEOUT=15
SEARXNG_LANGUAGE=auto
SEARXNG_SAFESEARCH=1
SEARXNG_CACHE_TTL_SECONDS=300