Update Changelog

Update docs/CHANGELOG.md from repository evidence instead of guesswork.

When to Use

• Add the newest release entry to docs/CHANGELOG.md
• Sync changelog text with GitHub Releases
• Summarize the latest tag from git history or code diffs

Defaults

• Keep the wording brief
• Only add the latest missing version unless the user explicitly asks to backfill older releases
• Prefer GitHub sources first, especially Releases and tag metadata
• Skip Features / Improvements / Bug Fixes headings when the release only has a few clear items

Procedure