[Good First Issue] Add Docker Compose for full-stack local development

[Oshgig]

Overview

New contributors currently have to manually piece together how to run the full stack (FastAPI backend + React frontend + GEE credentials). A docker-compose.yml would let anyone spin up the entire application with one command.

Scope

• Create Dockerfile for the Python backend (multi-stage: builder + runtime)
• Create Dockerfile for the React frontend (nginx serve static build)
• Create docker-compose.yml with services:
  • api — FastAPI backend
  • frontend — React app served via nginx
  • Optional: mlflow — experiment tracking UI
• Document .env variables needed for Docker in GETTING_STARTED.md
• Ensure GEE service account key can be mounted as a volume

Acceptance Criteria

• docker-compose up starts the full stack on http://localhost:8000 (API) and http://localhost:5173 (frontend)
• Backend can reach GEE when credentials are provided
• Frontend can reach backend API
• No local Python/Node installation required

Resources

• setup.py, requirements.txt — Python dependencies
• frontend/package.json — Node dependencies
• GETTING_STARTED.md — existing onboarding guide

Difficulty: Beginner-friendly to Intermediate
Labels: good first issue, devops, documentation