Initial move

backend/.env.example

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+DB_PATH=/nb/database.db
+API_TOKEN=test
+UPLOAD_DIR=/nb/uploads/
+DESCRIBE_IMAGES=1
+DESCRIBE_IMAGES_API=ollama
+DESCRIBE_IMAGES_PROMPT="Your task is to describe images to your friend in a friendly, detailed but concise manner.\n"
+DESCRIBE_IMAGES_TEMPERATURE=0.5
+DESCRIBE_IMAGES_MAX_TOKENS=8192
+OPENAI_API_KEY=sk-blahblahblahblahblahImAnAPIKeyWoopDeeDoo
+OPENAI_MODEL=gpt-4o
+OLLAMA_URL=http://localhost:11434
+OLLAMA_MODEL=moondream