Update config_provider.py

config_provider.py

@@ -53,6 +53,7 @@ class GlobalConfig(BaseModel):
     cloud_token: Optional[str] = None
     spark_endpoint: HttpUrl
     internal_prompt: Optional[str] = None
+    users: List["UserConfig"] = []
     
     # TTS configurations
     tts_engine: str = Field("no_tts", pattern=r"^(no_tts|elevenlabs|blaze)$")
@@ -77,13 +78,11 @@ class GlobalConfig(BaseModel):
 
     parameter_collection_config: ParameterCollectionConfig = Field(default_factory=ParameterCollectionConfig)
 
-    users: List["UserConfig"] = []
-
     def get_plain_token(self) -> Optional[str]:
         if self.cloud_token:
             # Lazy import to avoid circular dependency
             from encryption_utils import decrypt
-            return decrypt(self.cloud_token)
+            return decrypt(self.cloud_token) if self.cloud_token else None
         return None
     
     def get_tts_api_key(self) -> Optional[str]: