Refactor [LLM Apis] Google AI (#276)

- [+] refactor(google.ts): use dynamic googleApiVersion in chatPath construction
- [+] fix(constant.ts): remove hardcoded version from Google.ChatPath constant

app/client/platforms/google.ts

@@ -177,13 +177,15 @@ export class GeminiProApi implements LLMApi {
     const controller = new AbortController();
     options.onController?.(controller);
     try {
-      let chatPath = this.path(Google.ChatPath);
+      // Note: With this refactoring, it's now possible to use `v1`, `v1beta` in the settings.
+      // However, this is just temporary and might need to be changed in the future.
+      let chatPath = this.path(accessStore.googleApiVersion + Google.ChatPath);
 
       // let baseUrl = accessStore.googleUrl;
 
       if (!baseUrl) {
         baseUrl = isApp
-          ? DEFAULT_API_HOST + "/api/proxy/google/" + Google.ChatPath
+          ? DEFAULT_API_HOST + "/api/proxy/google/" + accessStore.googleApiVersion + Google.ChatPath
           : chatPath;
       }
 

app/constant.ts

@@ -104,7 +104,7 @@ export const Azure = {
 
 export const Google = {
   ExampleEndpoint: "https://generativelanguage.googleapis.com/",
-  ChatPath: "v1beta/models/gemini-pro:generateContent",
+  ChatPath: "/models/gemini-pro:generateContent",
 
   // /api/openai/v1/chat/completions
 };