Greptile Summary

Adds proptest-based roundtrip tests covering all five supported lockfile formats (pnpm, npm, Bun, Yarn classic, Yarn Berry). The strategy uses a correct triangular edge encoding (idx*(idx-1)/2 + prior_idx) that maps all reachable edges into a compact bit range, and the default proptest case count (256) is used — both improvements over what prior review comments suggested. Only dev-dependencies are touched; no production logic is changed.

Confidence Score: 5/5

Safe to merge — changes are limited to new test coverage and dev-dependency additions with no production logic modifications.

No P0 or P1 issues found. The single P2 observation (declared_dependencies not verified in normalization) is a test coverage gap, not a correctness defect. Cargo.lock additions are all reputable crates.io packages used only for testing.

No files require special attention.

Important Files Changed

_{Reviews (2): Last reviewed commit: "test(lockfile): add property roundtrip c..." | Re-trigger Greptile}