/**
 * Support declarations hoisted verbatim out of `project-context.ts` by the
 * b1 file-size campaign: the package.json reader, the build-tool config probe
 * and its candidate table, the semver-major helper, the CSS-conflict /
 * state-management / routing / data-fetching / notable-dependency tables, the
 * package-level legacy-signal collector, the sampled-JSX marker scanner and
 * the directory-walk helpers it walks with — plus the two display-label maps
 * that were finding-free where they stood.
 *
 * Signatures, bodies, tables and comments are unchanged; the two long
 * signatures that could not take an `export ` prefix without being re-wrapped
 * are exported from the footer below so every moved line stays byte-identical.
 *
 * What deliberately stayed in `project-context.ts` is every declaration that
 * carries a lint finding today: the `_projectRoot` `no-unused-vars` cluster
 * behind the detector table, `detectCssFrameworks` and
 * `componentLibraryLabel` (both over the `complexity` threshold),
 * `collectSourceFileLegacySignals` (`no-magic-numbers`) and
 * `sampleSourceFiles` (a non-null assertion). A campaign sibling must be
 * clean outright, so a finding-carrying declaration cannot be hoisted into
 * one — which is also why only two of the three label maps live here.
 */
import { statSync } from 'node:fs';
import type { BuildTool, ComponentLibrary, CssFramework } from './project-context-types.js';
declare function readPackageJson(projectRoot: string): {
    exists: boolean;
    deps: Record<string, string>;
};
export declare function detectBuildTool(projectRoot: string): {
    tool: BuildTool;
    path?: string;
};
export declare function majorOf(version: string | undefined): string | undefined;
declare function detectCssConflicts(library: ComponentLibrary, frameworks: CssFramework[]): string[];
export declare function detectStateManagement(deps: Record<string, string>): string[];
export declare function detectRouting(deps: Record<string, string>): string[];
export declare function detectDataFetching(deps: Record<string, string>): string[];
export declare function collectPackageLegacySignals(deps: Record<string, string>, signals: string[]): void;
export declare function scanSampleForLegacyMarkers(sample: readonly string[]): {
    classComponentHits: number;
    inlineStyleHits: number;
};
export declare function readDirOrEmpty(dir: string): string[];
export declare function statOrNull(path: string): ReturnType<typeof statSync> | null;
export declare function isIgnoredEntry(entry: string): boolean;
export declare function isJsxFile(entry: string): boolean;
export declare function notableDepsList(deps: Record<string, string>): string[];
export declare function buildToolLabel(tool: BuildTool): string;
export declare function cssFrameworkLabel(framework: CssFramework): string;
export { readPackageJson, detectCssConflicts };