Monthly issue metrics report

# Issue Metrics | Metric | Average | Median | 90th percentile | | --- | --- | --- | ---: | | Time to first response | None | None | None | | Time to close | None | None | None | | Time to answer | None | None | None | | Metric | Count | | --- | ---: | | Number of items that remain open | 1 | | Number of items closed | 0 | | Total number of items created | 1 | | Title | URL | Assignee | Author | Time to first response | Time to close | Time to answer | | --- | --- | --- | --- | --- | --- | --- | | Monthly issue metrics report | https://github.com/materialsproject/pymatgen/issues/4575 | None | [github-actions[bot]](https://github.com/github-actions[bot]) | None | None | None | _This report was generated with the [Issue Metrics Action](https://github.com/github/issue-metrics)_ Search query used to find these items: `repo:materialsproject/pymatgen is:issue created:2026-01-01..2026-01-31 -reason:"not planned"`