build: update testing and linting

[Ki-Seki]

No description provided.

[Copilot]

Pull Request Overview

This PR updates the project's testing and linting configuration to include the examples directory in code quality checks and adds VS Code-specific testing configuration.

• Extended linting and type checking to cover the examples directory
• Added VS Code settings to configure pytest as the default test runner

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
Makefile	Extended linting and formatting commands to include examples directory
.vscode/settings.json	Added VS Code configuration for pytest testing

---

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