feat: complete judge-only by default, --enrich opt-in + enrich hardening (0.23.0) #165

Job	Run time
msrv (rust 1.88)	5m 12s
coverage (llvm-cov)	46s
test (macos-latest)	4m 40s
test (ubuntu-latest)	4m 49s
cargo-audit (security advisories)	3m 11s
criterion benches (compile only)	33s
test (windows-latest)	8m 40s
	27m 51s

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