build(personfit): avoid benchmark-only dependency expansion

Author: seonghobae

crates/mlsirm-core/Cargo.toml

@@ -23,16 +23,17 @@ time = { version = "0.3", features = ["formatting", "parsing"] }
 uuid = "1"
 
 [features]
+# GPGPU acceleration of the neg-loglik + gradient hot path via wgpu.
+# Enabled by default so the published wheel gains GPU execution; the code
+# always falls back to the CPU implementation at runtime when no GPU adapter
+# is available (e.g. CI). Build with --no-default-features for a CPU-only
+# core with no wgpu dependency graph.
 default = ["gpu"]
 gpu = ["dep:wgpu", "dep:pollster", "dep:bytemuck"]
 
 [lints.rust]
 unexpected_cfgs = { level = "warn", check-cfg = ["cfg(coverage)"] }
 
 [dev-dependencies]
-proptest = "1"
-criterion = "0.5"
-
-[[bench]]
-name = "personfit_np_benchmark"
-harness = false
+# proptest is dual MIT / Apache-2.0 licensed -- permissive, matches this crate.
+proptest = "1"