fix(lsp): suppress Node.js deprecation warnings from JS-based LSP servers

Set NODE_NO_WARNINGS=1 when spawning LSP server processes to suppress
noisy punycode deprecation warnings from bash-language-server,
yaml-language-server, vscode-* servers, etc.

💘 Generated with Crush

Assisted-by: GLM 5.1 FP8 via Crush <crush@charm.land>

rust/crates/runtime/src/lsp_transport/mod.rs

@@ -161,6 +161,7 @@ impl LspTransport {
     ) -> io::Result<Self> {
         let mut cmd = Command::new(command);
         cmd.args(args)
+            .env("NODE_NO_WARNINGS", "1")
             .stdin(Stdio::piped())
             .stdout(Stdio::piped())
             .stderr(Stdio::inherit());
@@ -458,7 +459,8 @@ impl LspTransport {
             c
         };
 
-        cmd.stdin(Stdio::piped())
+        cmd.env("NODE_NO_WARNINGS", "1")
+            .stdin(Stdio::piped())
             .stdout(Stdio::piped())
             .stderr(Stdio::inherit());