/**
 * Utility class for path normalization (case-preserving).
 *
 * Key principles:
 * - File paths are case-preserving on all platforms (for Git case-sensitive repositories)
 * - Plugin IDs use lowercase normalization (via normalizeForPluginId in WorkspaceResolver)
 * - Path comparison is case-insensitive on Windows, case-sensitive on Unix
 */
export declare class PathNormalizer {
    /**
     * Normalizes a file path (case-preserving).
     *
     * Rules:
     * - Windows → Unix slashes (\ → /)
     * - Trailing slashes entfernen
     * - Multiple slashes vereinfachen
     * - Case BEHALTEN (case-preserving)
     *
     * @param filePath Path to normalize
     * @returns Normalized path (POSIX-style, case-preserved)
     */
    static normalizePath(filePath: string): string;
    /**
     * Cross-platform path comparison (case-insensitive on Windows, case-sensitive on Unix).
     *
     * @param p1 First path
     * @param p2 Second path
     * @returns True if paths are equal (considering platform case-sensitivity)
     */
    static pathsEqual(p1: string, p2: string): boolean;
    /**
     * Generates lookup variants for queries (forward slashes, leading slash, plugin prefixes, etc.).
     *
     * This is used for querying where paths might be stored with different formats:
     * - With/without plugin prefixes (5d-database-plugin/, documentation-system-plugin/, mcp-server/)
     * - With/without leading slashes
     * - Different slash directions (normalized to forward slashes)
     *
     * Note: This is for QUERIES only, not for storage. Storage uses normalizePath().
     *
     * @param filePath Path to generate variants for
     * @returns Array of path variants for query matching
     */
    static generateLookupVariants(filePath: string): string[];
}
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