H-43: fix WEB Captain takeover E2E flow (#8)

* test(shangwutong): cover CID rename reliability

* H-43: fix WEB Captain takeover flow

* H-48: preserve compatible provider model

* H-49: make Captain takeover atomic

* H-50: prevent duplicate widget initialization

---------

Co-authored-by: Rogee <rogee@ipao.vip>

backend/internal/handler/api/v1/captain_assistant_handler_test.go

@@ -48,6 +48,8 @@ func setupCaptainAssistantHandlerTestWithSummaryProvider(t *testing.T, provider
 		&model.CaptainDocument{},
 		&model.CaptainAssistantResponse{},
 		&model.CaptainMessageReport{},
+		&model.AgentBot{},
+		&model.AgentBotInbox{},
 	))
 	t.Cleanup(func() {
 		sqlDB, _ := db.DB()