Add CHANGELOG

[skonves]

No description provided.

[Copilot]

Pull Request Overview

This PR introduces a formal changelog and updates the Express dev dependency to v5.1.0.

• Bumps express in devDependencies from ^4.21.2 to ^5.1.0.
• Adds a CHANGELOG.md with both unreleased and past release notes.

Reviewed Changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated no comments.

File	Description
package.json	Updated express devDependency to ^5.1.0.
CHANGELOG.md	Added comprehensive changelog for all versions.

Comments suppressed due to low confidence (3)

CHANGELOG.md:5

• [nitpick] "Run tests on Express 5" is listed under "Security" but it’s primarily a test-related change. Consider moving it to a dedicated "Tests" or "Chore" section.

Security:

CHANGELOG.md:7

• The changelog notes running tests on Express 5 but doesn’t mention the actual bump of the express dependency. Add an entry like "Bump devDependency express to ^5.1.0" under version 2.0.2.

- Run tests on Express 5

package.json:38

• Since Express has been bumped to v5, consider verifying or documenting any required peerDependencies or compatibility notes to inform library consumers of this change.

    "express": "^5.1.0",

[coveralls]

coverage: 100.0%. remained the same
when pulling aad1512 on changelog
into 2758c54 on master.