[US-023] Store subscription plan selection and checkout #6
Description
User Story
As a store owner,
I want to select and pay for a subscription plan,
So that I can unlock more features for my store.
Acceptance Criteria
- Plan comparison page: Free, Starter (₱499/KD5 /mo), Pro (₱999/KD10 /mo), Enterprise
- Feature breakdown table clearly visible
- PH: GCash, Maya, credit/debit card (via PayMongo)
- KW: KNET, credit card, Benefit Pay
- Subscription activates immediately on successful payment
- Confirmation email with receipt sent