fix: Reverted to Gemini 1.5 Flash to resolve quota limits

apds/rag_utils.py

@@ -52,7 +52,7 @@ def get_ai_consultant():
         return None
     
     genai.configure(api_key=api_key)
-    return ChatGoogleGenerativeAI(model="gemini-2.0-flash", google_api_key=api_key)
+    return ChatGoogleGenerativeAI(model="gemini-1.5-flash", google_api_key=api_key)
 
 def generate_expert_report(detection_summary: str) -> str:
     """