feat: add useTestClock param when starting subscription (#7129)

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Subscription controller add `useTestClock` param to
`StartSubscriptionRequest`, `StartCryptoSubscriptionRequest`,
`CachedLastSelectedPaymentMethod`

## References

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## Checklist

- [x] I've updated the test suite for new or updated code as appropriate
- [x] I've updated documentation (JSDoc, Markdown, etc.) for new or
updated code as appropriate
- [x] I've communicated my changes to consumers by [updating changelogs
for packages I've
changed](https://github.com/MetaMask/core/tree/main/docs/contributing.md#updating-changelogs),
highlighting breaking changes as necessary
- [x] I've prepared draft pull requests for clients and consumer
packages to resolve any breaking changes

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> Adds optional `useTestClock` to `StartSubscriptionRequest`,
`StartCryptoSubscriptionRequest`, and `CachedLastSelectedPaymentMethod`.
> 
> - **Types**:
> - Add optional `useTestClock` to `StartSubscriptionRequest` and
`StartCryptoSubscriptionRequest` in
`packages/subscription-controller/src/types.ts`.
>   - Add optional `useTestClock` to `CachedLastSelectedPaymentMethod`.
> - **Docs**:
> - Update `packages/subscription-controller/CHANGELOG.md` under
Unreleased Added section to note new `useTestClock` params.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
f9ec0a8. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

Author: tuna1207

packages/subscription-controller/CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- added `useTestClock` param to `StartSubscriptionRequest`, `StartCryptoSubscriptionRequest`, `CachedLastSelectedPaymentMethod` ([#7129](https://github.com/MetaMask/core/pull/7129))
+
 ### Changed
 
 - Bump `@metamask/transaction-controller` from `^61.1.0` to `^61.2.0` ([#7126](https://github.com/MetaMask/core/pull/7126))

packages/subscription-controller/src/types.ts

@@ -132,6 +132,7 @@ export type StartSubscriptionRequest = {
   isTrialRequested: boolean;
   recurringInterval: RecurringInterval;
   successUrl?: string;
+  useTestClock?: boolean;
 };
 
 export type StartSubscriptionResponse = {
@@ -151,6 +152,7 @@ export type StartCryptoSubscriptionRequest = {
   tokenSymbol: string;
   rawTransaction: Hex;
   isSponsored?: boolean;
+  useTestClock?: boolean;
 };
 
 export type StartCryptoSubscriptionResponse = {
@@ -416,4 +418,5 @@ export type CachedLastSelectedPaymentMethod = {
   paymentTokenAddress?: Hex;
   paymentTokenSymbol?: string;
   plan: RecurringInterval;
+  useTestClock?: boolean;
 };