Add .env.example template for Neo4j configuration from Ana, the one who loves border collies

.env.example

@@ -1,48 +1,14 @@
-# ============== LLM CONFIGURATION ==============
+# HuggingFace
+HF_TOKEN=your_huggingface_token_here
 
-# Provider: "openai" or "anthropic"
-LLM_PROVIDER=openai
+# OpenAI (optional)
+OPENAI_API_KEY=your_openai_key_here
 
-# API Keys (at least one required for full LLM analysis)
-OPENAI_API_KEY=sk-your-key-here
-ANTHROPIC_API_KEY=sk-ant-your-key-here
+# Anthropic (optional)
+ANTHROPIC_API_KEY=your_anthropic_key_here
 
-# Model names (optional - sensible defaults set in config.py)
-# ANTHROPIC_MODEL=claude-sonnet-4-5-20250929
-# OPENAI_MODEL=gpt-5.1
-
-# ============== EMBEDDINGS ==============
-
-# OpenAI Embedding Model (used if LLM_PROVIDER is openai and performing RAG/Embeddings)
-OPENAI_EMBEDDING_MODEL=text-embedding-3-small
-
-# Local Embedding Model (used for local/offline embeddings)
-LOCAL_EMBEDDING_MODEL=sentence-transformers/all-MiniLM-L6-v2
-
-# ============== HUGGINGFACE (FREE TIER) ==============
-
-# HuggingFace Token - enables Llama 3.1 (best quality free model)
-# Get yours at: https://huggingface.co/settings/tokens
-#
-# WITHOUT HF_TOKEN: Falls back to ungated models (zephyr-7b-beta)
-# WITH HF_TOKEN: Uses Llama 3.1 8B Instruct (requires accepting license)
-#
-# For HuggingFace Spaces deployment:
-#   Set this as a "Secret" in Space Settings -> Variables and secrets
-#   Users/judges don't need their own token - the Space secret is used
-#
-HF_TOKEN=hf_your-token-here
-
-# ============== AGENT CONFIGURATION ==============
-
-MAX_ITERATIONS=10
-SEARCH_TIMEOUT=30
-LOG_LEVEL=INFO
-
-# ============== EXTERNAL SERVICES ==============
-
-# PubMed (optional - higher rate limits)
-NCBI_API_KEY=your-ncbi-key-here
-
-# Vector Database (optional - for LlamaIndex RAG)
-CHROMA_DB_PATH=./chroma_db
+# Neo4j Knowledge Graph
+NEO4J_URI=bolt://localhost:7687
+NEO4J_USER=neo4j
+NEO4J_PASSWORD=your_neo4j_password_here
+NEO4J_DATABASE=your_database_name