chore(release): prepare public source release

crates/mhash/Cargo.toml

@@ -0,0 +1,47 @@
+[package]
+name = "mercury-mhash"
+version.workspace = true
+edition.workspace = true
+rust-version.workspace = true
+license.workspace = true
+authors.workspace = true
+readme.workspace = true
+publish.workspace = true
+description = "High-performance OpenHashTab-class digest and manifest tooling."
+keywords.workspace = true
+categories.workspace = true
+
+[lints]
+workspace = true
+
+[dependencies]
+blake2s_simd.workspace = true
+blake3.workspace = true
+common = { path = "../common", default-features = false }
+crc.workspace = true
+crc32fast.workspace = true
+digest-traits.workspace = true
+lexopt.workspace = true
+md-5.workspace = true
+md4.workspace = true
+memmap2.workspace = true
+rayon.workspace = true
+ripemd.workspace = true
+serde.workspace = true
+serde_json.workspace = true
+sha1.workspace = true
+sha2.workspace = true
+sha3.workspace = true
+streebog.workspace = true
+tiny-keccak.workspace = true
+walkdir.workspace = true
+xxhash-rust.workspace = true
+
+[dev-dependencies]
+assert_cmd.workspace = true
+predicates.workspace = true
+tempfile.workspace = true
+
+[[bin]]
+name = "mhash"
+path = "src/main.rs"