Add DualEntry support for vendor matching

[lakchote]

Explanation of Change

DualEntry now supports the expense vendor picker, Vendors page, merchant rules, and vendor-name lookup. These features use the same eligible vendors as export. DualEntry follows Rillet in the source order and requires the vendorMatching beta and a configured connection.

This PR extends the vendor-matching support from the merged Rillet PR #100542. Current main is merged into this branch.

Fixed Issues

$ https://github.com/Expensify/Expensify/issues/679020
PROPOSAL:

Tests

Prerequisite: Use a workspace with the vendorMatching beta enabled, DualEntry connected and configured, and at least one active vendor available to the selected company.

More Features page

1. Go to Workspace Settings > More Features.
2. Verify the "Vendors" row is displayed and enabled.

Manual vendor selection and search

1. Open a non-reimbursable expense in workspace chat.
2. Verify the "Vendor" row is displayed below Category.
3. Tap "Vendor". Verify the DualEntry vendor list appears.
4. Search for a vendor. Verify the list filters by name.
5. Select a vendor. Verify the picker closes and the expense Vendor row is updated.
6. Make the expense reimbursable. Verify the Vendor row is hidden.

Automatic vendor matching

1. Create a non-reimbursable expense and then edit its merchant to a matching name.
2. Open the transaction thread in chat.
3. Verify Concierge adds the automatic match comment and sets the Vendor field on the transaction.

Inactive-vendor error

1. On an expense with a selected DualEntry vendor, deactivate that vendor in DualEntry and sync the connection.
2. Reopen the expense. Verify the Vendor row displays the brick-road indicator and an inactive-vendor error.
3. Tap the Vendor row and select an active vendor or "None". Verify the error clears.

Credit Card Misc fallback on export

Prerequisite: a DualEntry workspace with no default vendor set under Accounting > Export, and no vendor named Credit Card Misc in DualEntry.

1. Export a report with a positive non-reimbursable cash expense that has no vendor selected. Verify DualEntry now has one active Credit Card Misc vendor with no company set, and that the exported expense uses it. The workspace default vendor stays empty.
2. Export a second report with no vendors selected. Verify its direct expenses use the same Credit Card Misc vendor and no second one gets created.

• Verify that no errors appear in the JS console

Offline tests

NA

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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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/PolicyUtils.ts	81.41% <100.00%> (+0.14%)	⬆️
...ages/workspace/WorkspaceMoreFeaturesPage/index.tsx	69.85% <ø> (ø)
...y/export/DualEntryDefaultCompanyCardVendorPage.tsx	0.00% <0.00%> (ø)
... and 10 files with indirect coverage changes

[melvin-bot]

@hoangzinh 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]

[chatgpt-codex-connector]

Codex Review Summary

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-11T17:11:57.801657Z	f27f58c	Draft marked ready

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[lakchote]

@Beamanator ready for review now!

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Reviewed commit: f27f58c496

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[Beamanator]

hmm failing jest tests don't seem related, eh? I"ll retry them