/**
 * Filesystem walker for source-code reconstruction.
 * Skips test files, build artifacts, documentation, and examples.
 */
export declare function shouldExclude(relPath: string, extraPatterns?: string[]): boolean;
export type ScannedFile = {
    relPath: string;
    content: string;
};
export declare function walkFiles(rootDir: string, extensions: string[], extraExclude?: string[]): Promise<ScannedFile[]>;
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