GEMINI_API_KEY=your_gemini_api_key
GEMINI_MODEL=gemini-2.5-flash
EMBEDDING_MODEL_NAME=sentence-transformers/all-MiniLM-L6-v2
STUDENT_PERFORMANCE_URL_TEMPLATE=https://git-connect-backend-v2.vercel.app/api/student/{student_id}/performance/{semester}
RAG_INDEX_DB_URL=
NEON_MAX_RETRIES=5
NEON_RETRY_BACKOFF_SEC=1.0
NEON_CONNECT_TIMEOUT_SEC=10
VECTOR_DATA_DIR=data/vector_index
RAW_TEXT_DIR=data/raw_text
PDF_TIMEOUT_SEC=60
PDF_MAX_RETRIES=3
PDF_RETRY_BACKOFF_SEC=1.5
RAG_CHUNK_SIZE=1400
RAG_CHUNK_OVERLAP=250
RAG_SYLLABUS_TOP_K=8