Add ACSS support for WooCommerce Pre-Orders

[ricardo]

Changes proposed in this Pull Request:

Add ACSS Pre-Orders support.

Testing instructions

1. Enable the ACSS feature flag:
   • Use the Stripe Dev Tools plugin to enable the ACSS feature flag.
2. Enable ACSS in Stripe:
   • Navigate to the Stripe Dashboard.
   • Enable "Canadian Pre-Authorized Debits" in the payment methods settings.
3. Enable ACSS in WC Stripe:
   • Go to WooCommerce > Settings > Payments > Stripe.
   • Enable "Pre-Authorized Debit (ACSS)".
4. Listen to webhooks:

npm run listen

5. Change the store currency to CAD.
6. From the checkout page, use the following information for the address:
   • Country: Canada
   • Province: British Columbia
   • City: Vancouver
   • Postcode: K1A 0B1

Pre-Order (Charge Up Front)

1. Create a product, enable Pre-Orders, set When to Charge to Upfront.
2. On the storefront, purchase this product with ACSS and use a customer account.
3. Verify the order in WooCommerce → Orders (payment captured immediately).
4. In WooCommerce → Pre-Orders, release the product and confirm no additional charge occurs.

Pre-Order (Charge Upon Release)

1. Create a product, enable Pre-Orders, set When to Charge to Upon Release.
2. On the storefront, purchase this product with ACSS and use a customer account (no immediate charge).
3. Verify the order in WooCommerce → Orders (should show a pre-order status).
4. In WooCommerce → Pre-Orders, release the product and confirm the customer is charged via ACH at release.

In both scenarios, please check the order notes and status logs for any anomalies.

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• Covered with tests (or have a good reason not to test in description ☝️)
• Tested on mobile (or does not apply)

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Post merge

• Added testing instructions to the Release Testing Instructions wiki page (or does not apply)
• Added the needs docs label (or does not apply)
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[cesarcosta99]

LGTM and test well!

• ✅ Pre-Order (Charge Up Front)
  • Classic and Blocks checkouts
• ✅ Pre-Order (Charge Upon Release)
  • Classic and Blocks checkouts