Rewrite in Rust, refine extension

Cargo.toml

@@ -0,0 +1,23 @@
+[package]
+name = "virtual-webauthn"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+p256 = { version = "0.13", features = ["ecdsa", "pem"] }
+ecdsa = { version = "0.16", features = ["signing", "der"] }
+aes-gcm = "0.10"
+scrypt = "0.11"
+sha2 = "0.10"
+ciborium = "0.2"
+base64ct = { version = "1", features = ["std"] }
+rand = "0.8"
+log = "0.4"
+env_logger = "0.11"
+dirs = "6"
+
+[profile.release]
+lto = true
+strip = true