Add Dev Container configuration

[backpaper0]

Add Dev Container Configuration

This PR adds a complete Dev Container setup to standardize the development environment for the doma-spring-boot project.

Changes

Dev Container Setup:

• Added .devcontainer/Dockerfile based on Java 17 dev container image with proper Maven directory configuration
• Added .devcontainer/devcontainer.json with comprehensive development environment configuration including:
  • SDKMAN!
  • Docker-in-Docker support for Testcontainers
  • Python 3.12 with pre-commit tools
  • Persistent Maven and Docker volumes
  • VS Code extensions for Spring Boot, XML, and YAML development

Pre-commit Hooks:

• Added .pre-commit-config.yaml with automated code quality checks:
  • Java code formatting on pre-commit
  • Full project verification on pre-push
• Added setup script .devcontainer/setup.sh to automatically install pre-commit hooks

Benefits

• Consistent Development Environment: All developers will use the same Java 17, Maven, and tooling versions
• Automated Code Quality: Pre-commit hooks ensure code formatting and verification before commits/pushes
• Testcontainers Support: Docker-in-Docker enables integration testing with Testcontainers
• Quick Setup: New developers can start contributing immediately with a single container build

Usage

Developers can now use VS Code's "Reopen in Container" feature to automatically set up the complete development environment with all necessary tools and extensions.

[github-actions]

This pull request is stale because it has been open for 60 days with no activity.