fix: stabilize premium e2e settings isolation and HEIC waits

[bfintal]

Summary

• Restore smart_optimization (and related defaults) after premium specs that disable it, and reset defaults in settings-unlocked so it no longer fails from option pollution.
• Force upload MIME types in uploadSampleViaMediaNew, improve MIME mismatch diagnostics, and raise the HEIC → WebP wait to 180s for cold heic2any WASM loads on CI.

Test plan

• Premium CI e2e: settings-unlocked passes after earlier specs that set smart_optimization: 0
• Premium CI e2e: HEIC → WebP upload passes (or fails with a clearer unexpected MIME message)
• Spot-check that LQIP / optimize-all / optimization-toggle / stealth still pass

Summary by CodeRabbit

• Tests
  • Improved media upload validation by checking filenames, MIME types, and file contents more precisely.
  • Increased reliability of premium feature tests by consistently restoring optimization and related settings between test runs.
  • Added clearer setup for premium settings scenarios.
  • Allowed additional time for HEIC conversion tests to complete successfully.
• Bug Fixes
  • Reduced test interference caused by settings persisting between scenarios.

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Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 4b96300e-0fb4-4010-aca8-470affc27fe3

📥 Commits

Reviewing files that changed from the base of the PR and between 6023f1b and f14da50.

📒 Files selected for processing (7)

• e2e/test-utils/media.ts
• e2e/tests/premium/lqip.spec.ts
• e2e/tests/premium/optimization-toggle.spec.ts
• e2e/tests/premium/optimize-all.spec.ts
• e2e/tests/premium/settings-unlocked.spec.ts
• e2e/tests/premium/stealth.spec.ts
• e2e/tests/premium/svg-heic.spec.ts

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📝 Walkthrough

Walkthrough

Media test helpers now provide explicit MIME mismatch results and file payloads. Premium tests restore smart_optimization and related options between tests. HEIC upload tests allow 180 seconds for worker initialization.

Changes

Media and premium test reliability

Layer / File(s)	Summary
Media helper assertions and uploads e2e/test-utils/media.ts	MIME polling now matches expected strings or regular expressions and reports explicit mismatch values. File-picker uploads now pass a filename, MIME type, and buffered contents.
Premium option reset and HEIC timing e2e/tests/premium/*.spec.ts	Premium tests restore smart_optimization and related defaults. The settings test applies defaults before each test. The HEIC upload uses a 180-second timeout.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

• gambitph/Cimo#68: Updates the same media MIME assertion and file-picker upload helpers.
• gambitph/Cimo#69: Modifies related media helpers and premium settings reset flows.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/e2e-heic-ci

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🤖 Pull request artifacts

file	commit
pr74-cimo-74-merge.zip	f14da50