Three New Heuristics

Twelve scoring signals. The tool now analyzes actual diff content, not just metadata.

New Signals

Commit Time-of-Day (0 to +5 pts) — Flags off-hours commits with high velocity. Humans sleep; LLMs don't.
Comment Density (−3 to +5 pts) — LLMs over-explain (≥35% comments → +5); humans are lazier (<5% → −3). Supports Python, C/C++, Java, JS, Go, Rust, Swift, Dart, SQL, Lua, HTML.
Diff Entropy (−3 to +5 pts) — Shannon entropy of diff content. LLM diffs are repetitive/formulaic (low entropy); human diffs are varied and chaotic.

Closes #2, #3, #4.

pip install --upgrade git+https://github.com/gotnull/likelihoodlum.git