refactor(captcha): load answer from env dynamically

config.py

@@ -63,6 +63,11 @@ class Config:
         except FileNotFoundError:
             return default_captcha
 
+    def _load_captcha_answer(self):
+        """Load captcha answer from environment variable (supports live reload)"""
+        load_dotenv(override=True)  # Reload .env file
+        return os.getenv(key="CAPTCHA_ANSWER", default=None)
+
     def _load(self):
         load_dotenv()