/**
 * AWS Lambda Handler - Phase 2 Hosted Tier
 *
 * Provides RESTful API endpoint for Visus sanitization service
 * Invoked via API Gateway → Lambda → DynamoDB audit logging
 *
 * SECURITY RULES (from CLAUDE.md):
 * - No secrets in code (use Secrets Manager)
 * - No wildcard IAM permissions
 * - All user input sanitized
 * - No cross-user data access
 * - Reserved concurrent executions set
 * - No plaintext logging of tokens/PII
 */
import type { APIGatewayProxyEvent, APIGatewayProxyResult, Context } from 'aws-lambda';
export declare function handler(event: APIGatewayProxyEvent, context: Context): Promise<APIGatewayProxyResult>;
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