[No QA] Reorder unread indicator predicates to short-circuit cheaply

[TMisiukiewicz]

Explanation of Change

getUnreadReportsForUnreadIndicator runs on every Onyx update (report, report-action, NVP, draft) and previously walked every report computing six locals up front — including the expensive getOneTransactionThreadReportID call — before running the cheapest guards.

This PR reorders the predicates to short-circuit as early as possible with no behavioral change:

1. Mute check runs first (cheap CONST lookup).
2. Hidden-for-current-user check runs second (cheap flag check).
3. isUnread runs third.
4. getOneTransactionThreadReportID and the report-action/NVP lookups are deferred behind those three rejections.
5. shouldReportBeInOptionList (the heaviest predicate) runs last — only for reports that are unread, non-muted, and non-hidden, which is a small fraction of the full report list.

Perf gain on account with 100k reports: getUnreadReportsForUnreadIndicator goes down from 1.1s to 400ms

Fixed Issues

$ #94447
PROPOSAL:

Tests

Pure reordering; the result set is identical.

• Verify that no errors appear in the JS console

Offline tests

N/A

QA Steps

Same as tests

• Verify that no errors appear in the JS console

PR Author Checklist

• I linked the correct issue in the ### Fixed Issues section above
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  • I turned off my network connection and tested it while offline to ensure it matches the expected behavior (i.e. verify the default avatar icon is displayed if app is offline)
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• I included screenshots or videos for tests on all platforms
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  • 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

[codecov]

Codecov Report

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

Files with missing lines	Coverage Δ
src/libs/UnreadIndicatorUpdater/index.ts	95.65% <85.71%> (+4.34%)	⬆️
... and 11 files with indirect coverage changes

[melvin-bot]

@ZhenjaHorbach Please copy/paste the Reviewer Checklist from here into a new comment on this PR and complete it. If you have the K2 extension, you can simply click: [this button]

[melvin-bot]

@mountiny Please copy/paste the Reviewer Checklist from here into a new comment on this PR and complete it. If you have the K2 extension, you can simply click: [this button]

[ZhenjaHorbach]

Reviewer Checklist

• I have verified the author checklist is complete (all boxes are checked off).
• I verified the correct issue is linked in the ### Fixed Issues section above
• I verified testing steps are clear and they cover the changes made in this PR
  • I verified the steps for local testing are in the Tests section
  • I verified the steps for Staging and/or Production testing are in the QA steps section
  • I verified the steps cover any possible failure scenarios (i.e. verify an input displays the correct error message if the entered data is not correct)
  • I turned off my network connection and tested it while offline to ensure it matches the expected behavior (i.e. verify the default avatar icon is displayed if app is offline)
• I checked that screenshots or videos are included for tests on all platforms
• I included screenshots or videos for tests on all platforms
• I verified that the composer does not automatically focus or open the keyboard on mobile unless explicitly intended. This includes checking that returning the app from the background does not unexpectedly open the keyboard.
• I verified tests pass on all platforms & I tested again on:
  • Android: HybridApp
  • Android: mWeb Chrome
  • iOS: HybridApp
  • iOS: mWeb Safari
  • MacOS: Chrome / Safari
• If there are any errors in the console that are unrelated to this PR, I either fixed them (preferred) or linked to where I reported them in Slack
• I verified proper code patterns were followed (see Reviewing the code)
  • I verified that any callback methods that were added or modified are named for what the method does and never what callback they handle (i.e. toggleReport and not onIconClick).
  • I verified that comments were added to code that is not self explanatory
  • I verified that any new or modified comments were clear, correct English, and explained "why" the code was doing something instead of only explaining "what" the code was doing.
  • I verified any copy / text that was added to the app is grammatically correct in English. It adheres to proper capitalization guidelines (note: only the first word of header/labels should be capitalized), and is either coming verbatim from figma or has been approved by marketing (in order to get marketing approval, ask the Bug Zero team member to add the Waiting for copy label to the issue)
• If a new code pattern is added I verified it was agreed to be used by multiple Expensify engineers
• I verified that this PR follows the guidelines as stated in the Review Guidelines
• I verified other components that can be impacted by these changes have been tested, and I retested again (i.e. if the PR modifies a shared library or component like Avatar, I verified the components using Avatar have been tested & I retested again)
• If a new component is created I verified that:
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  • All JSX used for rendering exists in the render method
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• If any new file was added I verified that:
  • The file has a description of what it does and/or why is needed at the top of the file if the code is not self explanatory
• If a new CSS style is added I verified that:
  • A similar style doesn't already exist
  • The style can't be created with an existing StyleUtils function (i.e. StyleUtils.getBackgroundAndBorderStyle(theme.componentBG)
• If the PR modifies code that runs when editing or sending messages, I tested and verified there is no unexpected behavior for all supported markdown - URLs, single line code, code blocks, quotes, headings, bold, strikethrough, and italic.
• If the PR modifies a generic component, I tested and verified that those changes do not break usages of that component in the rest of the App (i.e. if a shared library or component like Avatar is modified, I verified that Avatar is working as expected in all cases)
• If the PR modifies a component related to any of the existing Storybook stories, I tested and verified all stories for that component are still working as expected.
• If the PR modifies a component or page that can be accessed by a direct deeplink, I verified that the code functions as expected when the deeplink is used - from a logged in and logged out account.
• If the PR modifies the UI (e.g. new buttons, new UI components, changing the padding/spacing/sizing, moving components, etc) or modifies the form input styles:
  • I verified that all the inputs inside a form are aligned with each other.
  • I added Design label and/or tagged @Expensify/design so the design team can review the changes.
• For any bug fix or new feature in this PR, I verified that sufficient unit tests are included to prevent regressions in this flow.
• If the main branch was merged into this PR after a review, I tested again and verified the outcome was still expected according to the Test steps.
• I have checked off every checkbox in the PR reviewer checklist, including those that don't apply to this PR.

Screenshots/Videos

Android: HybridApp

2026-06-24.13.16.51.mov

Android: mWeb Chrome

2026-06-24.13.17.53.mov

iOS: HybridApp

2026-06-24.13.16.51.mov

iOS: mWeb Safari

2026-06-24.13.17.53.mov

MacOS: Chrome / Safari

2026-06-24.13.14.43.mov

[github-actions]

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[github-actions]

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🍎 iOS 🍎	success ✅

Bundle Size Analysis (Sentry):

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• iOS

[MelvinBot]

🤖 No help site changes required.

This PR is a pure internal performance refactor of getUnreadReportsForUnreadIndicator in src/libs/UnreadIndicatorUpdater/index.ts. It only reorders the existing filter predicates so the cheap muted/hidden/unread guards short-circuit before the expensive getOneTransactionThreadReportID and shouldReportBeInOptionList calls.

As the PR description states, this is a "Pure reordering; the result set is identical" with no behavioral change:

• No user-facing feature, flow, setting, label, or UI element is added or modified.
• The unread indicator behaves exactly as before — only faster.

Since nothing user-facing changed, there is nothing to document in docs/articles, so I did not create a draft docs PR.

@TMisiukiewicz, please review the linked help site PR and confirm it reflects the current behavior. Then mark the linked help site PR Ready for review — note that no help site PR was created here because no documentation changes are required.