0.3.8 — Reliable saved-version comparison

Compare saved versions directly from history. A historical entry opens that version against the current work; the current version chooses its nearest other saved version. A single version has a disabled entry with an explanation.

Keep unsaved edits while viewing. Clear earlier structural differences and reject late success/error replies after later selections or requests; response identities must match the displayed project and pair. Viewing does not restore, create or automatically render. Recorded image conditions remain explicit.

从版本记录直接查看保存版与当前作品，保留未提交修改；旧配对、旧差异和迟到回执不再混入后来查看。查看与明确恢复、保存和渲染分别操作。

Validation, immutable source provenance and public installation evidence are supplied with checksums. No external user adoption or execution on every included native platform is claimed.