fix: adjust billing collection logic

[pbennett1-godaddy]

Summary

Updates billing collection so checkout consistently shows and validates only the information required for each delivery and payment flow.

• Offline pickup collects names and optional phone because taxes use the pickup location.
• Offline purchase and digital orders collect a billing address only when needed for taxes.
• Free orders follow the same billing rules as offline orders.
• Shipping orders can reuse the shipping address only when shipping-address collection is enabled.
• enableBillingAddressCollection: false is respected across all flows.
• Billing addresses are cleared when switching to a names-only flow.
• Discounts recalculate taxes correctly for purchase and digital orders.

Changeset

• Changeset added (docs)

Test Plan

Ran the full React package test suite:

pnpm --filter @godaddy/react test                                                                                                                                                                       

Also ran:

  pnpm --filter @godaddy/react build                                                                                                                                                                      
  pnpm --filter @godaddy/react typecheck                                                                                                                                                                  

Result:

  Test Files  52 passed                                                                                                                                                                                   
  Tests       551 passed                                                                                                                                                                                  
  Build       passed                                                                                                                                                                                      
  Typecheck   passed                                                                                                                                                                                      

[changeset-bot]

🦋 Changeset detected

Latest commit: 3af3471

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
@godaddy/react	Patch
nextjs	Patch

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