Core tool execution and output generation.

This issue highlights a critical user onboarding and basic functionality failure. A "command not found" error prevents any utility, indicating either poor installation instructions, an incomplete package, or environmental dependency issues. The expectation of a `report.txt` output confirms users anticipate clear, actionable results from a security tool. For a "Free, open-source, offline checks" solution, initial friction like this severely impacts adoption and trust. Users seeking spyware detection require immediate, unambiguous feedback. This directly undermines the product's core value proposition of providing accessible security analysis, suggesting a need for robust pre-flight checks or simplified execution paths to ensure basic operation across diverse user environments.