- Constrain the Git Manager modal with a flex column layout and overflow containment
- Prevent the modal header from shrinking and let the content area resize within available space
- Adjust small-screen sizing to use auto height with a 90vh cap so overlay padding is respected
- Add changeset entries documenting the Git Manager modal viewport rendering fix
- Fix .gm-content min-height from 400px to 0 for proper flex behavior
- Add mobile responsive styles to prevent modal overflow
- Create changeset for patch release