feat: enhance error handling for LLM API calls

Add LLM error alert functionality to display specific error messages based on API responses. Introduce new LlmErrorAlertType interface for structured error alerts. Update chat components to manage and display LLM error alerts effectively, improving user feedback during error scenarios.

app/types/actions.ts

@@ -62,6 +62,15 @@ export interface DeployAlert {
   source?: 'vercel' | 'netlify' | 'github';
 }
 
+export interface LlmErrorAlertType {
+  type: 'error' | 'warning';
+  title: string;
+  description: string;
+  content?: string;
+  provider?: string;
+  errorType?: 'authentication' | 'rate_limit' | 'quota' | 'network' | 'unknown';
+}
+
 export interface FileHistory {
   originalContent: string;
   lastModified: number;