feat: remove ModelUse and ModelAdd commands; update command handling and provider configuration

src/controller/command.rs

@@ -20,13 +20,6 @@ pub enum Command {
         command: String,
     },
     ModelList,
-    ModelUse {
-        provider: String,
-    },
-    ModelAdd {
-        name: String,
-        base_url: String,
-    },
     Unknown(String),
 }
 
@@ -81,19 +74,7 @@ pub fn parse_command(text: &str) -> Command {
                 Command::McpAdd { name: rest.to_string(), command: String::new() }
             }
         }
-        "/model" if arg1 == "ls" || arg1 == "list" => Command::ModelList,
-        "/model" if arg1 == "add" && !arg2.is_empty() => {
-            let rest = arg2.trim();
-            if let Some(space) = rest.find(' ') {
-                let name = rest[..space].to_string();
-                let base_url = rest[space + 1..].trim().to_string();
-                Command::ModelAdd { name, base_url }
-            } else {
-                Command::ModelAdd { name: rest.to_string(), base_url: String::new() }
-            }
-        }
-        "/model" if arg1.is_empty() => Command::ModelList,
-        "/model" => Command::ModelUse { provider: arg1.to_string() },
+        "/model" => Command::ModelList,
         _ => Command::Unknown(cmd.to_string()),
     }
 }