Update app.py

app.py

@@ -36,7 +36,7 @@ MAX_MEMORY_MESSAGES = 90  # Maximum messages to keep in memory per user
 MEMORY_CLEANUP_TIMEOUT = 1800  # 30 minutes in seconds - remove inactive users
 
 # small threshold to detect effectively-empty uploads (adjust as needed)
-IMAGE_BLANK_THRESHOLD_BYTES = int(os.getenv("IMAGE_BLANK_THRESHOLD_BYTES", "512"))
+IMAGE_BLANK_THRESHOLD_BYTES = int(os.getenv("IMAGE_BLANK_THRESHOLD_BYTES", "10000"))
 
 client = genai.Client(api_key=GEMINI_KEY)
 user_memory = {}  # { user_id: { "history": [], "last_sync": timestamp, "last_activity": timestamp, "needs_sync": bool, "personality": str, "last_storyline_date": str, "gender": str } }