feat: Implement service worker for IPFS vault

pkg/nebula/models/events.go

@@ -0,0 +1,13 @@
+package models
+
+type Event string
+
+const (
+	// Auth
+	AuthLoginSuccess    Event = "login_success"
+	AuthLogoutSuccess   Event = "logout_success"
+	AuthRegisterSuccess Event = "register_success"
+	AuthRegisterFailure Event = "register_failure"
+
+	WalletTransactionConfirmed Event = "transaction_confirmed"
+)