test: compare the Sauce Labs iOS app checks with committed baselines

[plum117]

Summary

The iOS checks of the Sauce Labs app job had no committed baselines: tests/sauceLabsBaseline/ had only the Android emulator (Google Pixel 8a). Because autoSaveBaseline was on (the default) in the Sauce config, every run saved a new baseline for the iOS sessions, and those 4 checks per session passed without a comparison.

This PR adds real iOS baselines collected from Sauce Labs and turns autoSaveBaseline off in CI, like #1274 did for LambdaTest.

Changes

• tests/sauceLabsBaseline/: 24 iOS baselines: iPhone 8, iPhone 8 Plus (iOS 14.5), iPhone XS, iPhone 11 (15.5), iPhone 12, iPhone 12 Pro Max (16.2) simulators × 4 checks (app-forms, app-login-button, app-login-button-resized, web-app).
• tests/configs/wdio.saucelabs.shared.conf.ts: autoSaveBaseline: !process.env.CI. In CI a missing baseline now fails; local runs can still create baselines.
• A temporary commit uploaded the baselines from CI; it is reverted, so the workflows do not change.

How the baselines were collected

• Run 37873418437 (round 1) and a re-run of the Sauce job (round 2) on this branch, with a temporary upload of tests/sauceLabsBaseline/.
• The 24 iOS images of both rounds are identical (0 different pixels). I looked at the images: complete screens (login form, webview page, login button), no blank or black screen.
• The 12 committed Android baselines did not change.

Test

• Final run 37879291323 (no temporary step, autosave off in CI): all 5 cloud jobs pass. Sauce app: 9/9 spec files, the 6 iOS sessions now compare with the committed baselines (4 passing each), no "Baseline image not found".

Note (not part of this PR)

In round 1, the LambdaTest Android web job failed once: Android 15 portrait in the -vp426x823 state, "screen with ignore elements", 0.066 % (tolerance 0.05 %). That baseline was made with the old test order before #1274; the difference is only at the edges of the ignored button regions. It passed in the final run (another display state). A separate PR will refresh that baseline.

🤖 Generated with Claude Code

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Latest commit: 21e5501

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[greptile-apps]

Confidence Score: 5/5

[Low impact] The PR appears safe to merge; no blocking issue was found.

Summary

Adds 24 iOS reference images and turns off autoSaveBaseline in Sauce Labs CI runs.

• Sauce iPhone checks compare screenshots with committed baselines in CI.

_{Reviews (2) · Last reviewed commit: "Revert "ci: TEMPORARY upload the Sauce L..." · Reviewed by Greptile}