FEATURE REQUEST:Add Docker Support for Backend to Simplify Local Development

### Is your feature request related to a problem?

- [x] Yes, it is related to a problem

### Describe the feature you'd like

🌟 Feature Description

Introduce Docker support for the backend to simplify local development and ensure a consistent environment across different operating systems.

The goal is to provide a containerized development setup that allows contributors to run the backend with a single command instead of manually installing and configuring dependencies.

This would include adding:

A Dockerfile

A docker-compose.yml file

A .dockerignore file

Updated README instructions for Docker usage

🔍 Problem Statement

Currently, contributors must manually:

Install Python

Manage virtual environments

Install project dependencies

Configure environment variables

Ensure compatible versions of required tools

This can lead to:

Environment mismatch issues

Setup failures across different operating systems

Dependency conflicts

Increased onboarding time for new contributors

These issues can slow down development and discourage first-time contributors.

🎯 Expected Outcome

After implementing Docker support:

Contributors can start the backend using:

docker compose up --build

The backend runs inside an isolated, reproducible environment

Setup becomes faster and more reliable

Environment-related issues are significantly reduced

CI/CD integration becomes easier

📷 Screenshots and Design Ideas

Proposed repository additions:

/Dockerfile
/docker-compose.yml
/.dockerignore

Suggested workflow:

git clone
cd
docker compose up --build

The container would:

Build and run the Flask backend

Install all dependencies automatically

Expose the API on a local port

Optionally mount SQLite as a Docker volume

📋 Additional Context

Tech Stack:

Frontend: React Native

Backend: Flask (Python)

AI/NLP: LangChain

Database: SQLite

### Record

- [x] I agree to follow this project's Code of Conduct
- [x] I want to work on implementing this feature