feat(config): 为 anthropic、kimi、deepseek 添加 list_models 支持

src/llm/anthropic.rs

@@ -70,10 +70,16 @@ impl AnthropicClient {
         Ok(self)
     }
 
+    /// List available models
+    pub async fn list_models(&self) -> Result<Vec<String>> {
+        // Anthropic doesn't have a models API endpoint, return predefined list
+        Ok(ANTHROPIC_MODELS.iter().map(|&m| m.to_string()).collect())
+    }
+
     /// Validate API key
     pub async fn validate_key(&self) -> Result<bool> {
         let url = "https://api.anthropic.com/v1/messages";
-        
+
         let request = MessagesRequest {
             model: self.model.clone(),
             max_tokens: 5,
@@ -84,7 +90,7 @@ impl AnthropicClient {
             }],
             system: None,
         };
-        
+
         let response = self.client
             .post(url)
             .header("x-api-key", &self.api_key)
@@ -93,7 +99,7 @@ impl AnthropicClient {
             .json(&request)
             .send()
             .await;
-        
+
         match response {
             Ok(resp) => {
                 if resp.status().is_success() {