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## **Description**

<!--
Write a short description of the changes included in this pull request,
also include relevant motivation and context. Have in mind the following
questions:
1. What is the reason for the change?
2. What is the improvement/solution?
-->
Google Sign-In on seedless accounts will require iOS 17.4 or later in a
future release. Users on older iOS versions need a clear, repeatable
nudge to update or back up their Secret Recovery Phrase before support
is removed.

This change adds a **post-login** saga that, on iOS below 17.4, waits
for wallet navigation to settle, then may present a **reminder** sheet
with dedicated copy (distinct from the initial onboarding warning). The
reminder is shown only when **blocking mode is off** (so it does not
compete with the blocking UX), the user is on the **seedless Google**
flow, and they have **not dismissed** the sheet within the last **7
days**. Dismissal time is stored in onboarding state
(`iosGoogleWarningSheetLastDismissedAt`) and covered by saga unit tests.
JSDoc was added on related onboarding prompt helpers.

## **Changelog**

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`CHANGELOG entry: Added a new tab for users to see their NFTs`
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CHANGELOG entry: Added periodic reminders after login for Google
seedless users on iOS versions below 17.4 to update iOS or back up their
Secret Recovery Phrase before Google Sign-In requirements change

## **Related issues**

Fixes:

## **Manual testing steps**

```gherkin
Feature: iOS Google version reminder after login

  Scenario: reminder shows for seedless Google on iOS below 17.4 when eligible
    Given the device is iOS with version below 17.4
    And Google login iOS unsupported blocking is disabled
    And the user has a seedless Google account (Google auth connection, seedless login flow)
    And the user has not dismissed the reminder sheet in the last 7 days (or never dismissed it)

    When the user completes login and reaches the wallet
    Then after a short delay a reminder sheet should appear with the "iOS update required" title and reminder copy
    And dismissing the sheet should prevent the same reminder from appearing again within 7 days

  Scenario: no reminder when blocking mode is enabled
    Given the device is iOS with version below 17.4
    And Google login iOS unsupported blocking is enabled

    When the user completes login
    Then the periodic post-login reminder sheet described in this PR should not be shown by this saga

  Scenario: no reminder for non-Google seedless or non-seedless users
    Given the device is iOS with version below 17.4
    And blocking mode is off

    When the user completes login as Apple seedless or a non-seedless account
    Then the periodic post-login reminder sheet should not be shown

  Scenario: reminder can show again after 7 days
    Given the device is iOS with version below 17.4
    And blocking mode is off
    And the user previously dismissed the reminder more than 7 days ago

    When the user logs in again
    Then the reminder sheet may be shown again
```

## **Screenshots/Recordings**

<!-- If applicable, add screenshots and/or recordings to visualize the
before and after of your change. -->

### **Before**

<!-- [screenshots/recordings] -->

### **After**

<!-- [screenshots/recordings] -->



https://github.com/user-attachments/assets/ff925bd7-8cdb-4b60-b8f5-5182c6af70ab




## **Pre-merge author checklist**

- [ ] I've followed [MetaMask Contributor
Docs](https://github.com/MetaMask/contributor-docs) and [MetaMask Mobile
Coding
Standards](https://github.com/MetaMask/metamask-mobile/blob/main/.github/guidelines/CODING_GUIDELINES.md).
- [ ] I've completed the PR template to the best of my ability
- [ ] I've included tests if applicable
- [ ] I've documented my code using [JSDoc](https://jsdoc.app/) format
if applicable
- [ ] I've applied the right labels on the PR (see [labeling
guidelines](https://github.com/MetaMask/metamask-mobile/blob/main/.github/guidelines/LABELING_GUIDELINES.md)).
Not required for external contributors.

## **Pre-merge reviewer checklist**

- [ ] I've manually tested the PR (e.g. pull and build branch, run the
app, test code being changed).
- [ ] I confirm that this PR addresses all acceptance criteria described
in the ticket it closes and includes the necessary testing evidence such
as recordings and or screenshots.



<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Medium Risk**
> Touches onboarding/authentication Redux state and introduces a new
always-on root saga that can show blocking UI after login; mistakes
could cause unexpected sheets, analytics noise, or incomplete state
reset on wallet deletion.
> 
> **Overview**
> Adds a new onboarding Redux field
(`iosGoogleWarningSheetLastDismissedAt`) plus actions/selectors to
persist when the iOS Google version warning was last dismissed, and a
`CLEAR_ONBOARDING` action to reset the entire onboarding slice.
> 
> Introduces a new post-login saga (`promptIosGoogleWarningSheetSaga`)
that, on iOS < 17.4 and for seedless Google accounts, waits for `LOGIN`,
delays, then conditionally shows a reminder sheet (or error variant when
the blocking feature flag is enabled) with a 7-day cooldown and optional
analytics tracking. Updates onboarding social-login flow to record
dismissal time and enriches the warning metric properties.
> 
> Expands onboarding iOS prompt helpers with dedicated reminder/error
copy and new strings, and updates wallet deletion to clear onboarding
state via `clearOnboarding()` (with corresponding action/reducer/saga
tests added).
> 
> <sup>Reviewed by [Cursor Bugbot](https://cursor.com/bugbot) for commit
cd8e7bb. Bugbot is set up for automated
code reviews on this repo. Configure
[here](https://www.cursor.com/dashboard/bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

---------

Co-authored-by: Tyler Chong <tyler.chong@consensys.net>