[FEATURE] Save LLM advice to persistent database

[givemethatsewon]

📋 Description

Add functionality to save responses generated by the LLM (Large Language Model) to a database for future retrieval or analysis.

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✔️ Checklist

1. Database Design
   • modify table to store LLM advice with fields if needed
2. Backend Logic
   • Update the backend logic to save the LLM response after it’s generated.
3. API Integration
   • update an API endpoint to fetch stored advice, optionally with filtering (e.g., by timestamp or query).