fix(gemini): update model list with more specific names for better api compatibility

src/services/gemini.ts

@@ -17,7 +17,9 @@ export async function generateGemini(prompt: string, systemPrompt: string): Prom
   const modelOptions = [
     'gemini-2.0-flash',
     'gemini-1.5-flash',
-    'gemini-pro'
+    'gemini-1.5-pro',
+    'gemini-1.0-pro-002',
+    'gemini-1.0-pro'
   ];
 
   let lastError: any = null;