refactor(types): improve type safety in TreeItem and WebviewMessage i…

…nterfaces

- Updated TreeItem interface to use a more specific type for the value property.
- Used string literal types for command, provider, and model properties in WebviewMessage interface for better type safety and autocomplete support.

src/types/ChatTypes.ts

@@ -18,7 +18,7 @@ export interface ChatMessage {
 
 export interface TreeItem {
   name: string;
-  value?: string;
+  value?: string | number;
   children?: TreeItem[];
   title?: string;
   hidden?: boolean;
@@ -27,9 +27,40 @@ export interface TreeItem {
 }
 
 export interface WebviewMessage {
-  command: string;
+  command: 'sendMessage' | 'clearChat' | 'showInfo' | 'updateProvider' | 'updateModel' | 'prevPage' | 'nextPage';
   text?: string;
   context?: string[];
-  provider?: string;
-  model?: string;
+  provider?: 'openai' | 'anthropic' | 'gemini';
+  model?: | 'gemini-1.5-pro' 
+  | 'gemini-1.5-flash' 
+  | 'gemini-1.0-pro'
+  | 'gpt-4o'
+  | 'gpt-4o-mini'
+  | 'gpt-4o-2024-05-13'
+  | 'gpt-4-turbo'
+  | 'gpt-4-turbo-2024-04-09'
+  | 'gpt-4-0125-preview'
+  | 'gpt-4-turbo-preview'
+  | 'gpt-4-1106-preview'
+  | 'gpt-4-vision-preview'
+  | 'gpt-4'
+  | 'gpt-4-0314'
+  | 'gpt-4-0613'
+  | 'gpt-4-32k'
+  | 'gpt-4-32k-0314'
+  | 'gpt-4-32k-0613'
+  | 'gpt-3.5-turbo'
+  | 'gpt-3.5-turbo-16k'
+  | 'gpt-3.5-turbo-0301'
+  | 'gpt-3.5-turbo-0613'
+  | 'gpt-3.5-turbo-1106'
+  | 'gpt-3.5-turbo-0125'
+  | 'gpt-3.5-turbo-16k-0613'
+  | 'claude-3-5-sonnet-20240620'
+  | 'claude-3-opus-20240229'
+  | 'claude-3-sonnet-20240229'
+  | 'claude-3-haiku-20240307'
+  | 'claude-2.1'
+  | 'claude-2.0'
+  | 'claude-instant-1.2';
 }