/**
 * squad doctor — setup validation diagnostic command.
 *
 * Inspects the .squad/ directory (or hub layout) and reports
 * the health of every expected file / convention. Always exits 0
 * because this is a diagnostic tool, not a gate.
 *
 * Inspired by @spboyer (Shayne Boyer)'s doctor command in PR bradygaster/squad#131.
 *
 * @module cli/commands/doctor
 */
/** Result of a single diagnostic check. */
export interface DoctorCheck {
    name: string;
    status: 'pass' | 'fail' | 'warn';
    message: string;
    /** Optional severity hint for display; keeps the status union stable. */
    severity?: 'info';
}
/** Detected squad layout mode. */
export type DoctorMode = 'local' | 'remote' | 'hub';
/**
 * Check that Node.js is ≥22.5.0 for node:sqlite availability.
 * Accepts an optional version string for testing.
 */
export declare function checkNodeVersion(nodeVersion?: string): DoctorCheck;
/**
 * Check that squad git sync hooks are installed when the state backend requires them.
 * Only runs for 'two-layer' and 'orphan' backends (which need hooks to push state branches).
 * Returns undefined when the check is not applicable.
 */
export declare function checkGitSyncHooks(cwd: string, squadDir: string): DoctorCheck | undefined;
/**
 * Check that every LF-pinned file is actually LF *on disk*.
 *
 * `.gitattributes` governs checkout, not files already on disk: git only
 * re-smudges a working file when the pull also changes that file's index
 * content. So adding an `eol=lf` rule leaves every already-LF-in-index path
 * still CRLF on disk in existing Windows checkouts, indefinitely (#1793).
 * The symptom is not an error — a CRLF shebang survives Vite's shebang
 * stripping as a bare `#`, the module fails to parse, and the vitest suite
 * importing it reports "no tests". A green-looking zero (#1788).
 *
 * DELIBERATELY A SEPARATE IMPLEMENTATION FROM scripts/check-shebang-eol.mjs,
 * which owns the same invariant family for repo tooling. That script is a repo
 * script and is not published inside this package, so `dist/` cannot import it
 * without breaking every installed copy of the CLI. Do not "deduplicate" these
 * by adding an import across that boundary. What they must keep in sync is the
 * record-parsing shape above, which is pinned by tests on both sides.
 *
 * Returns undefined when the check does not apply (not a git repo, git absent,
 * or no LF-pinned files at all), matching the other conditional checks.
 */
export declare function checkWorktreeEol(cwd: string): DoctorCheck | undefined;
/**
 * Run all doctor checks for the given working directory.
 * Returns an array of check results — never throws for check failures.
 */
export declare function runDoctor(cwd?: string): Promise<DoctorCheck[]>;
/**
 * Detect the squad mode for the given working directory.
 * Exported for tests and display.
 */
export declare function getDoctorMode(cwd?: string): DoctorMode;
/**
 * Print doctor results to stdout. Intended for CLI use.
 */
export declare function printDoctorReport(checks: DoctorCheck[], mode: DoctorMode): void;
/**
 * CLI entry point — run doctor and print results.
 */
export declare function doctorCommand(cwd?: string): Promise<void>;
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