PROVIDER=openrouter
OPENROUTER_API_KEY=sk-or-...
# PROVIDER_MODEL=          # optional: OpenRouter adapter supplies default
# OPENROUTER_HTTP_REFERER=https://example.com
# OPENROUTER_APP_TITLE=Historical Transcription MVP
# DATABASE_URL=sqlite:///./transcription.db
# UPLOAD_DIR=./uploads
# PROMPT_DIR=./prompts
