feat: add support for request ID tracking across services

- Implemented request ID handling in various services and handlers to improve traceability of requests.
- Added new AuthOptions endpoint to expose WxWork and OIDC configuration options.
- Updated message and event logging to include request ID for better debugging.
- Enhanced login form to dynamically show available authentication options based on server configuration.
- Introduced utility functions for normalizing and ensuring valid request IDs.
- Updated tests to verify request ID functionality in message sending and event logging.

internal/builders/conversation_builder.go

@@ -149,6 +149,7 @@ func BuildMessageWithReadStatesAndLocale(item *models.Message, agentReadState, c
 	ret := response.MessageResponse{
 		ID:              item.ID,
 		ConversationID:  item.ConversationID,
+		RequestID:       item.RequestID,
 		ClientMsgID:     item.ClientMsgID,
 		SenderType:      item.SenderType,
 		SenderID:        item.SenderID,