Merge PR #280: 0.2.14: Altium runs save the board at every step and before export
Merge PR #279: 0.2.13: Altium library refuses a symbol spec without pin types
Merge PR #277: 0.2.11: signed-in project page, ASCII parts tab, bridge 0.2.53 guard
Merge PR #275: 0.2.10: Altium symbol and pin-type check, project-library parts, one desktop folder per run
Merge PR #273: 0.2.9: the Altium lane on 0.2.x (courtyards, parts and project page, verified list)
0.1.99: EDA backends (KiCad, Fusion, Altium behind one Eda trait) and the Altium lane