[No QA] perf: Search S4 useSearchSnapshot data layer

[BartekObudzinski]

Explanation of Change

`` now consumes a single useSearchSnapshot(...) for every variant and feeds the existing `SearchList`. The hook owns the entire projection (both `getSections` stages, group sub-snapshots, sort, columns, defer gating, highlight stamping) and absorbs the two-phase optimistic-row resilience, so the screen runs the live merge and the optimistic lifecycle exactly once. This removes the parallel double-pipeline (and the duplicated optimistic lifecycle on the flat-expense path) that the earlier S4+S5 draft carried.

Behavior-preserving. useSearchSnapshot is a hydrated facade for now: data is the fully sorted + joined rows that SearchList still reads display fields off. Identities-only is deferred to S5/S6, once the rows self-hydrate. searchResults and the highlight keys are passed in transitionally (the snapshot subscription moves into the hook in S6).

Fixed Issues

$ #93940
PROPOSAL:

Tests

• Verify that no errors appear in the JS console

Offline tests

QA Steps

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
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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/components/Search/hooks/useSearchSnapshot.ts	87.20% <87.20%> (ø)
src/components/Search/index.tsx	0.75% <0.00%> (+0.75%)	⬆️
... and 765 files with indirect coverage changes

[melvin-bot]

@Ollyws 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]

@FitseTLT @mountiny One of you needs to 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]

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[mountiny]

@BartekObudzinski ESlint if failing

[BartekObudzinski]

@vit all good now

[BartekObudzinski]

@MelvinBot do regression test on android

[BartekObudzinski]

@FitseTLT Can you review? Thanks!

[FitseTLT]

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.
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  • Android: HybridApp
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  • 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
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Screenshots/Videos

Android: HybridApp

Android: mWeb Chrome

iOS: HybridApp

iOS: mWeb Safari

MacOS: Chrome / Safari

[FitseTLT]

@BartekObudzinski BUG

2026-06-19.16-13-26.mp4

[BartekObudzinski]

just updated the docs fyi, the bug you mean you can't create track distance? @FitseTLT

[FitseTLT]

just updated the docs fyi, the bug you mean you can't create track distance? @FitseTLT

It is crasing when u create an expense while on spend page. It is not happening on main.

[BartekObudzinski]

Thanks I could reproduce that, looking into that

[trjExpensify]

PR doesn’t need product input as a perf PR. Unassigning and unsubscribing myself.