export type EmailRecipient = string | string[];
export interface EmailSendOptions {
    bodyText?: string;
    categories?: string[];
    isMultiple?: boolean;
}
/**
 * Minimal email sender contract.
 */
export interface EmailProvider {
    sendEmail(to: EmailRecipient, subject: string, bodyHtml: string, options?: EmailSendOptions): Promise<void>;
}
/**
 * Supported provider names.
 */
export type EmailProviderName = 'sendgrid' | 'none';
/**
 * Logger interface kept small to avoid framework coupling.
 */
export interface EmailLogger {
    error?(message: string, error?: unknown): void;
}
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