pbl-v8-to-v9-migration

MEDIUM W009: Direct money access capability detected (payment gateways, crypto, banking).

• Direct money access detected (high risk: 1.00). The skill is explicitly a Play Billing Library v9 migration guide: it requires adding com.android.billingclient:billing(-ktx):9.0.0, uses BillingResponseCode handling, DeveloperProvidedBillingDetails.getLinkUri() (launches external payment URIs), and showInAppMessages for price-acceptance flows. These are payment-specific APIs designed to initiate and manage purchases/checkout flows (directly enabling in‑app purchases and external payment launches), so the skill grants direct financial execution capability.