Update app/lens_images_core.py

app/lens_images_core.py

@@ -14,7 +14,9 @@ if not LOGGER.handlers:
         format="%(asctime)s | %(levelname)s | %(name)s | %(message)s",
     )
 
-COOKIE_JSON_URL = os.getenv("COOKIE_JSON_URL", "")
+COOKIE_JSON_URL = os.getenv("COOKIE_JSON_URL")
+if not COOKIE_JSON_URL:
+    raise RuntimeError("Missing COOKIE_JSON_URL secret. Set it in Space Settings > Secrets.")
 UA = "Mozilla/5.0 (Lens OCR Images)"
 
 _COMMON_CHROME_PATHS = [