export declare class FileManager {
    private static readonly LOCK_COMMENT_PREFIX;
    private static readonly LOCK_COMMENT_REGEX;
    static addLockComment(filePath: string, id: string, state: string, projectRoot?: string): void;
    static removeLockComment(filePath: string, projectRoot?: string): void;
    static updateLockComment(filePath: string, id: string, state: string, projectRoot?: string): void;
    static hasLockComment(content: string): boolean;
    static extractLockInfo(content: string): {
        id: string;
        state: string;
    } | null;
    private static resolveFilePath;
    private static validateFilePath;
}
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