Update config_models.py

config_models.py

@@ -141,9 +141,9 @@ class VersionConfig(BaseModelWithDatetime):
     welcome_prompt: Optional[str] = None
     llm: LLMConfiguration
     intents: List[IntentConfig] = Field(default_factory=list)
-    created_date: datetime
+    created_date: str
     created_by: str
-    publish_date: Optional[datetime] = None
+    publish_date: Optional[str] = None
     published_by: Optional[str] = None
 
 
@@ -162,9 +162,9 @@ class ProjectConfig(BaseModelWithDatetime):
     versions: List[VersionConfig] = Field(default_factory=list)
     version_id_counter: int = 1
     deleted: bool = False
-    created_date: datetime
+    created_date: str
     created_by: str
-    last_update_date: Optional[datetime] = None
+    last_update_date: Optional[str] = None
     last_update_user: Optional[str] = None
 
 
@@ -204,16 +204,16 @@ class APIConfig(BaseModelWithDatetime):
     response_prompt: Optional[str] = None
     response_mappings: List[ResponseMapping] = Field(default_factory=list)
     deleted: bool = False
-    created_date: Optional[datetime] = None
+    created_date: Optional[str] = None
     created_by: Optional[str] = None
-    last_update_date: Optional[datetime] = None
+    last_update_date: Optional[str] = None
     last_update_user: Optional[str] = None
 
 
 # ===================== Activity Log =====================
 class ActivityLogEntry(BaseModelWithDatetime):
     id: int
-    timestamp: datetime
+    timestamp: str
     username: str
     action: str
     entity_type: str
@@ -229,7 +229,7 @@ class ServiceConfig(BaseModelWithDatetime):
     apis: List[APIConfig] = Field(default_factory=list)
     activity_log: List[ActivityLogEntry] = Field(default_factory=list)
     project_id_counter: int = 1
-    last_update_date: Optional[datetime] = None
+    last_update_date: Optional[str] = None
     last_update_user: Optional[str] = None
     
     class Config: