iMessage Food Photo Nutritional Analysis with GPT-4 Vision & Memory Storage

iMessage AI-Powered Smart Calorie Tracker > 📌 What it looks like in use: > This image shows a visual of the workflow in action. Use it for reference when replicating or customizing the template. This n8n template transforms a user-submitted food photo into a detailed, friendly, AI-generated nutritional report — sent back seamlessly as a chat message. It combines OpenAI's visual reasoning, Postgres-based memory, and real-time messaging with Blooio to create a hands-free calorie and nutrition tracker. 🧠 Use Cases Auto-analyze meals based on user-uploaded images. Daily/weekly/monthly diet summaries with no manual input. Virtual food journaling integrated into messaging apps. Nutrition c

Help me set up the n8n workflow "iMessage Food Photo Nutritional Analysis with GPT-4 Vision & Memory Storage" (https://n8n.io/workflows/5461). It uses: HTTP Request, Code, AI Agent, OpenAI Chat Model, Postgres Chat Memory. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.