Fix wrong next action message, missing Pay button after bypassing approver & approving offline

[fahimj]

Explanation of Change

This PR fixes an issue where admins who bypassed approvers using "Change approver" → "Bypass approvers" would see incorrect next step messages and missing Pay buttons when approving expense reports offline.

The root cause was that the getApprovalChain function in ReportUtils.ts calculated approval chains based on policy workflows, ignoring the current report state where an admin had become the manager by bypassing approvers. This caused isLastApprover to return false instead of true, leading to incorrect status predictions.

The fix adds a check at the beginning of getApprovalChain to detect when the current user is the manager (indicating they bypassed approvers) and returns an approval chain containing only them, ensuring correct approval flow logic.

Fixed Issues

$ #69249
#72726
#72742
PROPOSAL: #69249 (comment)

Tests

1. Create a test account with admin privileges on a workspace
2. Create an expense report as a regular employee and submit it
3. As an admin, go to the expense report and select "Change approver" → "Bypass approvers"
4. Verify the admin becomes the manager of the report (managerID should match admin's accountID)
5. Go offline (disconnect internet or use airplane mode)
6. As the admin, approve the expense report
7. Verify the next step message shows "Waiting for an admin to pay expense(s)" (not "Waiting for approver to approve expense(s)")
8. Verify the Pay button appears and is functional
9. Test on a regular approval flow (without bypassing) to ensure no regression
10. Verify normal approval chain still works when current user is not the manager

• Verify that no errors appear in the JS console

Offline tests

1. Follow the main test steps above while offline
2. Verify the correct next step message appears when approving while offline
3. Verify the Pay button is visible and functional while offline
4. Test reconnecting to internet and ensure the approval status syncs correctly

QA Steps

Same as tests above. Additional QA considerations:

• Test with multiple approvers in the chain before bypassing

• 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
  • I added steps to cover 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 tested this PR with a High Traffic account against the staging or production API to ensure there are no regressions (e.g. long loading states that impact usability).
• 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
  • MacOS: Desktop
• I verified there are no console errors (if there's a console error not related to the PR, report it or open an issue for it to be fixed)
• I verified there are no new alerts related to the canBeMissing param for useOnyx
• I followed proper code patterns (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 shown in the product is localized by adding it to src/languages/* files and using the translation method
    • If any non-english text was added/modified, I used JaimeGPT to get English > Spanish translation. I then posted it in #expensify-open-source and it was approved by an internal Expensify engineer. Link to Slack message: N/A (no text changes)
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  • I verified the JSDocs style guidelines (in STYLE.md) were followed
• If a new code pattern is added I verified it was agreed to be used by multiple Expensify engineers
• I followed the guidelines as stated in the Review Guidelines
• I tested other components that can be impacted by my changes (i.e. if the PR modifies a shared library or component like Avatar, I verified the components using Avatar are working as expected)
• I verified all code is DRY (the PR doesn't include any logic written more than once, with the exception of tests)
• I verified any variables that can be defined as constants (ie. in CONST.ts or at the top of the file that uses the constant) are defined as such
• I verified that if a function's arguments changed that all usages have also been updated correctly
• 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 new assets were added or existing ones were modified, I verified that:
  • The assets are optimized and compressed (for SVG files, run npm run compress-svg)
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• 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)
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• I added unit tests for any new feature or bug fix in this PR to help automatically prevent regressions in this user 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.

Screenshots/Videos

Android: Native

android-fix.mov

Android: mWeb Chrome

android-web.mp4

iOS: Native

ios.mov

iOS: mWeb Safari

ios.mov

MacOS: Chrome / Safari

after-web.mp4

MacOS: Desktop

desktop.mp4

[melvin-bot]

@parasharrajat 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]

[fahimj]

I have a concern about my comment here: #72726 (comment) — it looks like the current optimistic next step approver message isn’t in sync with the backend. Should we fix it?