Update app.py

app.py

@@ -15,6 +15,8 @@ from typing import Dict, List, Optional, Tuple, Any
 from dataclasses import dataclass
 import logging
 import math
+import time, random
+from image_utils import compress_image_to_data_url
 
 import gradio as gr
 import requests
@@ -49,7 +51,12 @@ def load_json(path: str) -> dict:
         logger.error(f"Failed to load {path}: {e}")
         return {}
 
-
+_SYSTEM_PROMPT = None
+def get_system_prompt() -> str:
+    global _SYSTEM_PROMPT
+    if not _SYSTEM_PROMPT:
+        _SYSTEM_PROMPT = load_text("prompts/system_prompt.txt")
+    return _SYSTEM_PROMPT
 
 
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