i forget

src/config.rs

@@ -4,6 +4,10 @@ use std::env;
 use std::fs;
 use std::path::PathBuf;
 
+fn default_session_name() -> String {
+    "default".to_string()
+}
+
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct Config {
     pub api: ApiConfig,
@@ -27,6 +31,8 @@ pub struct DefaultsConfig {
     pub reasoning_effort: String,
     pub enable_web_search: bool,
     pub enable_reasoning_summary: bool,
+    #[serde(default = "default_session_name")]
+    pub default_session: String,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
@@ -72,6 +78,7 @@ impl Default for DefaultsConfig {
             reasoning_effort: "medium".to_string(),
             enable_web_search: true,
             enable_reasoning_summary: false,
+            default_session: "default".to_string(),
         }
     }
 }
@@ -232,4 +239,9 @@ impl Config {
         println!("  Request timeout: {}s", self.api.request_timeout_seconds);
         println!("  Max conversation history: {}", self.limits.max_conversation_history);
     }
+    
+    pub fn set_default_session(&mut self, session_name: String) -> Result<()> {
+        self.defaults.default_session = session_name;
+        self.save()
+    }
 }