feat(rust): add Rust-based DNS server backend with IPC management and TypeScript bridge

rust/crates/rustdns/Cargo.toml

@@ -0,0 +1,26 @@
+[package]
+name = "rustdns"
+version = "0.1.0"
+edition = "2021"
+
+[[bin]]
+name = "rustdns"
+path = "src/main.rs"
+
+[lib]
+name = "rustdns"
+path = "src/lib.rs"
+
+[dependencies]
+rustdns-protocol = { path = "../rustdns-protocol" }
+rustdns-dnssec = { path = "../rustdns-dnssec" }
+rustdns-server = { path = "../rustdns-server" }
+tokio = { version = "1", features = ["full"] }
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+clap = { version = "4", features = ["derive"] }
+tracing = "0.1"
+tracing-subscriber = "0.3"
+dashmap = "6"
+base64 = "0.22"
+rustls = { version = "0.23", features = ["ring"] }