/**
 * Email Service
 *
 * Handles email notifications (SendGrid integration)
 */
/**
 * Send welcome email
 */
export declare function sendWelcomeEmail(email: string, name: string): Promise<boolean>;
/**
 * Send email verification
 */
export declare function sendVerificationEmail(email: string, token: string): Promise<boolean>;
/**
 * Send password reset email
 */
export declare function sendPasswordResetEmail(email: string, token: string): Promise<boolean>;
/**
 * Send low credit warning
 */
export declare function sendLowCreditWarning(email: string, creditsRemaining: number): Promise<boolean>;
/**
 * Send subscription receipt
 */
export declare function sendSubscriptionReceipt(email: string, amount: number, planTier: string): Promise<boolean>;
/**
 * Send job completion notification
 */
export declare function sendJobCompletionEmail(email: string, jobId: string, sourceLang: string, targetLang: string): Promise<boolean>;
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