sub

type Billing struct {
	Show        bool
	CurrentPlan string        // active plan name ("" = none / manual)
	ExpireText  string        // "до DD.MM.YYYY" for a paid expiry, else ""
	Plans       []BillingPlan // paid plans offered for purchase/renewal
	Providers   []BillingPay  // enabled payment methods (empty ⇒ manual only)
	Manual      bool          // no automatic provider ⇒ pay button creates a manual order
	Note        string        // manual-payment instructions when no provider is set
	PayPath     string        // POST target that starts a payment (<SubURL>/pay)
	OrderPath   string        // GET target that reports a pending provider payment (<SubURL>/order)
	// Locked is true while a paid plan is active: only that plan (renewal) is shown,
	// switching to another is blocked, and Cancelable offers cancellation instead.
	Locked     bool
	Cancelable bool
	CancelPath string // POST target that cancels the active plan (<SubURL>/cancel)
}

type BillingPay struct {
	Key   string
	Label string
}

type BillingPlan struct {
	ID      int64
	Name    string
	Label   string // price + period, e.g. "199 ₽ / 30 дн."
	Current bool   // the user's currently active plan
}

type DeepLink struct {
	Label    string
	Platform string
	Href     template.URL
}