Changed

• Internal: split git-backed post-analysis passes (unstable_dependency, bus_factor, low_test_ratio) out of cha-cli/src/analyze.rs into a new cha-cli/src/git_metrics module. No behaviour change; analyze.rs drops below the 850-line large_file threshold that cargo xtask analyze gates on. collect_top_level in the C parser also picks up // cha:ignore high_complexity alongside the existing cognitive-complexity ignore after the declaration arm added one branch.

Note: 1.11.0 was tagged in the repo but the CI self-analyze gate failed on the above source-dir warnings so crates.io was never updated. 1.11.1 is the first shipped release of the 1.11 line.