feat(docker): add Docker Compose support for local development

[serjaum]

Description

Adds Docker Compose configuration to simplify local development and deployment of Wealthfolio. This PR includes a docker-compose.yml file with production and development profiles, along with comprehensive documentation updates.

Type of Change

• New feature
• Bug fix
• Breaking change
• Documentation update

Changes Made

Added

• docker-compose.yml with two service profiles:
  • wealthfolio: Production/default service
  • wealthfolio-dev: Development service with CORS enabled for local Vite dev server
• Health check configuration for service monitoring
• Volume configuration for data persistence

Updated

• README.md: Added "Using Docker Compose" section with:
  • Quick start instructions
  • Development mode setup
  • Useful commands
  • Configuration options
  • Volume information

Features

• Easy local setup: Run Wealthfolio with a single command
• Development profile: Pre-configured CORS for local Vite dev server (localhost:1420, localhost:3000)
• Production ready: Includes health checks and proper volume management
• Flexible configuration: Supports environment variables via .env file or inline
• Data persistence: Uses Docker volumes for database and secrets storage

Usage

Production

export WF_SECRET_KEY=$(openssl rand -base64 32)
docker compose up -d