[Subomiadekunle]

Closes #482 (part of #477)

Adds boneset-api/saveReload.test.js, which checks that saved scenes come back with complete visual fidelity.

What's tested

• Reopen: a complex scene saves and reopens from a fresh store (simulating closing and reopening).
• Images: 5 images covering move, resize, rotation (including negative and decimal), horizontal and vertical flip, crop, and a legacy import. Every field and the layer order are compared one by one.
• Annotations: text labels (font size, color, linked image), a pointer line, and a colored region. Content, position, style, and order are compared.
• Re-save: reordering images and annotations and saving again keeps the new order and edits.
• Discard: unsaved edits are not stored, and reopening returns the last saved version. The editor's discard flow itself is covered in templates/tests/scenes.test.js ("discards the copy without storing it when the user agrees").
• Failed saves (from the issue notes): a storage failure (500), invalid content (400), and a save from an out-of-date copy (412) all leave the saved scene unchanged, and saving works again once storage recovers.

Manual verification
Created a scene, imported Ilium with labels and regions, then moved, resized, rotated, flipped, cropped, and reordered images. Saved, refreshed the page, and reopened: everything matched. Made another edit, discarded it, and reopened: the edit was gone.

![Uploading image.png…]()

Testing

• npx jest boneset-api/saveReload.test.js: 11 tests pass
• npm test: all suites pass
• npm run lint: clean

[mudabs]

Approved

Thank you Subomi for the thorough test coverage. This PR verifies that complex scenes preserve image properties, annotation properties, layer ordering, edits after a second save, and the last saved version after discarded changes.

The failure cases for storage errors, invalid content, and stale scene versions are also valuable because they confirm that failed saves do not overwrite the previously saved scene.

I ran the focused test suite and the full test suite successfully, and lint is clean. I’m approving this PR.

[mudabs]

I also appreciate the manual image verifications!