MD_FOLDER=notes EMBEDDING_MODEL=mxbai-embed-large:latest LLM_MODEL=qwen2.5:7b-instruct-q8_0 OLLAMA_BASE_URL=http://localhost:11434 SYSTEM_PROMPT="You are a precise technical assistant. Cite sources using [filename]. Be concise." USER_PROMPT_TEMPLATE="Previous Conversation: {history} Context from Docs: {context} Current Question: {question}"