refactor: improve code readability and consistency across multiple files

apps/infrastructure/src/lsp/manager.rs

@@ -19,6 +19,15 @@ impl LspManager {
             clients: HashMap::new(),
         }
     }
+}
+
+impl Default for LspManager {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+impl LspManager {
 
     pub fn start(&mut self, language: &str, command: &str, args: &[String]) -> anyhow::Result<()> {
         let client = LspClient::start(command, args)?;
@@ -31,7 +40,7 @@ impl LspManager {
     }
 
     pub fn shutdown_all(&mut self) {
-        for (_lang, client) in &self.clients {
+        for client in self.clients.values() {
             let _ = client.shutdown();
         }
         self.clients.clear();