Add and update docker-container setup files

[husnain067]

Feature Pull Request

Branch Naming Convention

Current branch: feature/add-dev-container-json

Related Issue

Closes #194

Feature Description

Implement Visual Studio Code Dev Containers for PyLaunch Blueprint by creating a properly configured devcontainer.json file that provides a consistent development environment..

Implementation Details

Add Docker and VS Code Dev Container support to py-launch-blueprint, providing a consistent, isolated development environment.

Changes Made

• Added .devcontainer/devcontainer.json configuration file.
• Update the existing docker file to add relevant user guide.

Testing Performed

Locally test the environment is working inside the dev container created.

Testing Instructions

1: Docker Desktop installed and running.

2: Follow these steps to test it.

• Open the project folder in VS Code.
• When prompted, select “Reopen in Container.”
  Or run Cmd+Shift+P → Dev Containers: Reopen in Container.
• Wait for the container to build.

3: Once inside the container
Run the following just commands in the terminal.

1: just format
2: just lint
3: just test

Need to verify that all the commands execute successfully without errors.

Documentation Updates

• Update the docker.md file.

Breaking Changes

Checklist

• Branch name follows convention (feature/description or feature/issue-number-description)
• Testing added to pre-commit hook (pre-commit run --all-files passes)
• Testing added to CI/CD pipeline in GitHub Actions
• Documentation added/updated in Sphinx
• Appropriate unit test coverage added (run pytest --cov to verify)
• New commands added to CLI (if applicable)
• Code follows project style guidelines (flake8 or equivalent passes)
• All tests pass locally and in CI
• Self-review of code performed
• No debug print statements or commented-out code left in the codebase

Reviewer Notes

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

Scanned Files

None