feat(server): server version command

Author: rubydusa

server/Cargo.lock

@@ -22,3 +22,4 @@ codespan-reporting = "0.9.0"
 itertools = "0.10.5"
 num-traits = "0.2.6"
 tempfile = "3"
+clap = { version = "4.3.0", features = ["derive"] }

server/circom-lsp/Cargo.toml

@@ -0,0 +1,5 @@
+use clap::Parser;
+
+#[derive(Parser, Debug)]
+#[command(author, version, about, long_about = None)]
+pub struct ServerOptions {}

server/circom-lsp/src/cli.rs

@@ -1,15 +1,20 @@
 mod ast;
 mod backend;
+mod cli;
 mod constants;
 mod lsp_types_util;
 mod parse;
 mod wrappers;
 
 use backend::Backend;
+use clap::Parser;
+use cli::ServerOptions;
 use tower_lsp::{LspService, Server};
 
 #[tokio::main]
 async fn main() {
+    let _server_options = ServerOptions::parse();
+
     let stdin = tokio::io::stdin();
     let stdout = tokio::io::stdout();