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

rust/crates/rustdns-server/Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = "rustdns-server"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+rustdns-protocol = { path = "../rustdns-protocol" }
+rustdns-dnssec = { path = "../rustdns-dnssec" }
+tokio = { version = "1", features = ["full"] }
+hyper = { version = "1", features = ["http1", "server"] }
+hyper-util = { version = "0.1", features = ["tokio"] }
+http-body-util = "0.1"
+rustls = { version = "0.23", features = ["ring"] }
+tokio-rustls = "0.26"
+rustls-pemfile = "2"
+tracing = "0.1"
+bytes = "1"