ci: add workflow to run formatting and linting

[3w36zj6]

This pull request introduces a GitHub Actions workflow for continuous integration (CI) and refines the npm scripts for code formatting and linting.

The changes ensure that code quality checks (formatting and linting) are automated and more consistent across the project.

[Copilot]

Pull Request Overview

This PR adds automated CI checks for code quality by introducing a GitHub Actions workflow and reorganizing npm scripts for formatting and linting. The changes ensure consistent code style enforcement through automated checks on pushes and pull requests to the main branch.

Key changes:

• Added a new CI workflow with format and lint jobs
• Restructured npm scripts to separate check operations from fix operations
• Updated eslint pattern from src/**.ts to **/*.ts for broader coverage

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
package.json	Reorganized scripts: split formatting into check/write modes, renamed lint fix script, and updated file patterns
.github/workflows/ci.yaml	New CI workflow with setup job for dependencies and matrix job for running format and lint checks

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[Copilot]

Pull Request Overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

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