Checkpoint 1 — usable split-view prototype

[GeoffRiley]

Outcome

Open one image and a matching Markdown or text file, edit the text, save it, and navigate the image comfortably.

Implementation slices

• Prototype: package scaffold and split window #6 — package scaffold and split window
• Prototype: pointer-centred image zoom and drag pan #7 — pointer-centred image zoom and drag pan
• Prototype: save UTF-8 text without data loss #8 — safe UTF-8 text saving

Exit checks

• Resizable split view: editable UTF-8 text left, image right.
• Open a pair manually; visible filename and unsaved status.
• Pointer-centred zoom, drag pan, and fit/reset controls work on the sample pages.
• Text saves safely; switching or closing cannot silently discard edits.
• One hands-on session transcribing from a real user-owned image confirms zoom and pan feel right.

Evidence

Link a short demo or screenshots, the relevant PRs, and a note on what felt awkward. Review the image controls before starting directory workflow.