/**
 * Platform-level configuration for server icon uploads.
 *
 * Defines constraints for icon file uploads including size limits,
 * output dimensions, and allowed MIME types.
 *
 * Requirements: 2.2, 2.3, 2.4
 */
/** Configuration for server icon upload and processing. */
export interface IServerIconConfig {
    /** Maximum raw upload size in bytes */
    maxFileSizeBytes: number;
    /** Output dimensions (square) in pixels */
    outputSizePx: number;
    /** Allowed input MIME types */
    allowedMimeTypes: string[];
    /** Output MIME type after processing */
    outputMimeType: string;
}
/** Default server icon configuration: 5MB max, 256px square, PNG output. */
export declare const DEFAULT_SERVER_ICON_CONFIG: IServerIconConfig;
/**
 * Returns true if the given MIME type is allowed for server icon uploads.
 * @param mimeType - The MIME type string to check
 */
export declare function isAllowedIconMimeType(mimeType: string): boolean;
/**
 * Returns true if the given file size (in bytes) is within the allowed limit.
 * @param sizeBytes - The file size in bytes to check
 */
export declare function isAllowedIconFileSize(sizeBytes: number): boolean;
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