/**
 * Resolve the main repository root if the given directory is inside a git worktree.
 *
 * @param projectDir - Absolute path to the project directory
 * @returns The main repo root path if inside a worktree, or `null` if not a worktree
 */
export declare function resolveWorktreeRoot(projectDir: string): string | null;
/** Returns worktree root if in a worktree, otherwise the original projectDir. */
export declare function getCanonicalProjectPath(projectDir: string): string;
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