[No QA] refactor: IOURequestStepScan clean-up, phase 4: fix react-hooks/exhaustive-deps warning

[samranahm]

Explanation of Change

Fixed Issues

$ #79929
PROPOSAL:

Tests

• Verify that no errors appear in the JS console

Offline tests

QA Steps

// TODO: These must be filled out, or the issue title must include "[No QA]."

• Verify that no errors appear in the JS console

PR Author Checklist

• I linked the correct issue in the ### Fixed Issues section above
• I wrote clear testing steps that cover the changes made in this PR
  • I added steps for local testing in the Tests section
  • I added steps for the expected offline behavior in the Offline steps section
  • I added steps for Staging and/or Production testing in the QA steps section
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• I included screenshots or videos for tests on all platforms
• I ran the tests on all platforms & verified they passed on:
  • Android: Native
  • Android: mWeb Chrome
  • iOS: Native
  • iOS: mWeb Safari
  • MacOS: Chrome / Safari
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Screenshots/Videos

Android: Native

Android: mWeb Chrome

iOS: Native

iOS: mWeb Safari

MacOS: Chrome / Safari

[Copilot]

Pull request overview

Refactors IOURequestStepScan (web + native) to eliminate react-hooks/exhaustive-deps suppressions as part of the ongoing cleanup plan for the scan step.

Changes:

• Web: updates the “validate initial scan files” effect to satisfy exhaustive-deps by adding dependencies and a useRef guard.
• Native: removes the exhaustive-deps suppression on capturePhoto and adds missing dependencies to the callback.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
src/pages/iou/request/step/IOURequestStepScan/index.tsx	Adjusts a mount-time validation effect to comply with exhaustive-deps via deps + useRef guard.
src/pages/iou/request/step/IOURequestStepScan/index.native.tsx	Updates capturePhoto callback dependencies and removes the eslint suppression.

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[bernhardoj]

Sounds make sense, but the previous code only runs once, so I think we can ignore this.

[codecov]

Codecov Report

✅ Changes either increased or maintained existing code coverage, great job!

Files with missing lines	Coverage Δ
...u/request/step/IOURequestStepScan/index.native.tsx	40.25% <ø> (ø)
...ages/iou/request/step/IOURequestStepScan/index.tsx	0.00% <0.00%> (ø)
... and 56 files with indirect coverage changes

[bernhardoj]

Looks good, but since phase 4 mentions about react compiler compatibility, let's fix the IOURequestStepScan/index.native.tsx component because it currently can't be compiled.

[samranahm]

@bernhardoj Both files are react compiler compatible, please let me know if you're getting any error.

[trjExpensify]

PR doesn’t have any new product considerations as a code clean-up PR. Unassigning and unsubscribing myself.

[bernhardoj]

Oh, you're right. I use the React compiler marker plugin, and it marked it as not able to be compiled. I guess it's the plugin bug then.

cc: @roryabraham @chrispader