fix: eliminate security vulnerabilities and strengthen test coverage#13

Merged

pmclSF merged 7 commits intomainfrom

security/fix-critical-vulnerabilities

Feb 28, 2026

Commits on Feb 28, 2026

fix: eliminate critical/high security vulnerabilities

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test: add 26 tests for security fixes + fix 3 bugs found during coverage analysis

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refactor: Phase 1 — repository hygiene, packaging, imports, and bug fixes

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fix: data pipeline — file I/O, parsing, sampling, and boundary duplication

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fix: entropy model mathematics — discretized likelihood, z_bits, joint optimization

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fix: architecture alignment — GDN rewrite, synthesis fix, encode/decode consistency

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test: add Phase 5 validation tests — entropy correctness, causality, roundtrip, numerical stability

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