Set up a client and basic command infrastructure

src/args.rs

@@ -0,0 +1,29 @@
+use clap::{command, Parser, Subcommand};
+
+#[derive(Parser)]
+#[command(version, about, long_about = None)]
+pub(crate) struct Opts {
+    #[arg(short, long)]
+    pub server_url: String,
+
+    #[arg(short, long)]
+    pub api_key: String,
+
+    #[command(subcommand)]
+    pub command: Commands,
+}
+
+#[derive(Subcommand)]
+pub(crate) enum Commands {
+    /// Server related commands
+    Server {
+        #[command(subcommand)]
+        server_command: ServerCommands,
+    },
+}
+
+#[derive(Subcommand)]
+pub(crate) enum ServerCommands {
+    /// Fetches the version of the server
+    Version {},
+}