Add devcontainer configuration with Java 8 and Maven support

[jbrejner]

This pull request adds a new development container configuration to the project, making it easier for developers to set up a consistent Java development environment using VS Code and Docker.

Development environment setup:

• Added a .devcontainer/devcontainer.json file that specifies a Java 8 development container image, includes Maven, and recommends relevant VS Code extensions for Java development.Also added vscode recommended extensions for Java development.

[Copilot]

Pull Request Overview

Adds a new devcontainer configuration to standardize a Java 8 + Maven development environment for VS Code using a predefined container image and recommended extensions.

• Introduces .devcontainer/devcontainer.json with Java 8 base image and feature config
• Specifies VS Code Java extension pack (and Maven extension separately)
• Runs a simple post-create command to verify Java installation

Comments suppressed due to low confidence (1)

.devcontainer/devcontainer.json:1

• Using a Java-specific base image and also adding the java feature is redundant and can create confusion about which layer controls the toolchain; choose either the Java image alone (and remove the java feature block) or a generic base image plus the java feature. Simplifying this reduces duplication and potential drift.

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[Copilot]

Pull Request Overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated 1 comment.

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[Copilot]

Pull Request Overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated 1 comment.

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_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}