/** Legacy fixed port, retained as the ultimate fallback when no project root is known. */
export declare const DEFAULT_BRIDGE_PORT = 9877;
/**
 * Canonical form of a project root directory for hashing. Must match the C++
 * side byte-for-byte: forward slashes, no trailing slash, lowercased (the
 * filesystems we target are case-insensitive, and lowercasing also folds
 * Windows drive-letter casing like `C:` vs `c:`).
 */
export declare function normalizeProjectRoot(dir: string): string;
/**
 * Derive the bridge base port from a project root directory. SHA-1 of the
 * normalized path, first 4 bytes folded into the ephemeral range. SHA-1 (not
 * SHA-256) because it is trivially available on both sides - Node's crypto and
 * UE's FSHA1 - and the hash is used only for port spreading, never security.
 */
export declare function deriveProjectPort(projectRootDir: string): number;