Improve CyclomaticComplexityAssessor with streaming subprocess and lizard scoring#498

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mikebonnet wants to merge 13 commits into

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mikebonnet:feature/improve-cyclomatic

Commits on Jun 12, 2026

feat: add safe_subprocess_run_stream for streaming subprocess output

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refactor: use safe_subprocess_run_stream in CyclomaticComplexityAssessor

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feat: implement lizard output parsing and remove returncode check

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fix: replace MissingToolError with CalledProcessError for radon failures

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refactor: improve _assess_go_complexity

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refactor: parse radon average from last line only

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fix: add -i -1 flag and returncode check to lizard assessment

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refactor: allow sanitize_subprocess_error to accept strings directly

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feat: include sanitized stdout in CyclomaticComplexityAssessor errors

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chore: remove redundant except MissingToolError re-raises

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feat: run lizard with parallel threads matching cpu count

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fix: ensure _assess_go_complexity always returns a Finding

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fix: call close() in _finalize() to prevent descriptor leaks

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