import Foundation /// Provider-specific spend/budget snapshot (e.g. Claude "Extra usage" monthly spend vs limit).public struct ProviderCostSnapshot: Equatable, Codable, Sendable {    public let used: Double    public let limit: Double    public let currencyCode: String    /// Human-friendly period label (e.g. "Monthly"). Optional; some providers don't expose a period.    public let period: String?    /// Optional renewal/reset timestamp for the period.    public let resetsAt: Date?    public let updatedAt: Date     public init(        used: Double,        limit: Double,        currencyCode: String,        period: String? = nil,        resetsAt: Date? = nil,        updatedAt: Date)    {        self.used = used        self.limit = limit        self.currencyCode = currencyCode        self.period = period        self.resetsAt = resetsAt        self.updatedAt = updatedAt    }}