feat(tip): add personalized payment success experience

src/stores/payment/payment-context.tsx

@@ -24,6 +24,8 @@ export interface PaymentContextState {
   currentOrderId: string | null;
   payParams: Record<string, unknown> | null;
   orderStatus: MachineContext["orderStatus"];
+  tipCount: number | null;
+  thankYouMessage: string | null;
   errorMessage: string | null;
   launchNonce: number;
   isLoadingPlans: boolean;
@@ -72,6 +74,8 @@ function selectPaymentState(state: PaymentSnapshot): PaymentContextState {
     currentOrderId: state.context.currentOrderId,
     payParams: state.context.payParams,
     orderStatus: state.context.orderStatus,
+    tipCount: state.context.tipCount,
+    thankYouMessage: state.context.thankYouMessage,
     errorMessage: state.context.errorMessage,
     launchNonce: state.context.launchNonce,
     isLoadingPlans: