Added an option to specify demo user, will be created on startup if it does not exist

internal/config/config.go

@@ -20,7 +20,8 @@ type Config struct {
 	Limit               int               `toml:"limit" default:"100" comment:"A single API call will return at most this number of records."`
 	InventaireUrl       string            `toml:"inventaire-url" default:"https://inventaire.io" comment:"An inventaire.io instance URL."`
 	DisableRegistration bool              `toml:"disable-registration" default:"false" comment:"Disable new account creation."`
-	DemoMode            bool              `toml:"demo-mode" default:"false" comment:"Activate demo mode: anyone connecting to the instance will be logged in as user 'demo'"`
+	DemoMode            bool              `toml:"demo-mode" default:"false" comment:"Activate demo mode: anyone connecting to the instance will be logged in as a single user."`
+	DemoUsername        string            `toml:"demo-username" default:"demo" comment:"Name of the single user used for the demo."`
 	AddUser             UserListAsStrings `toml:"add-user" short:"a" comment:"Add an user on startup following htpasswd bcrypt format, example: [\"demo:$2y$10$UHR2646SZo2W.Rhna7bn5eWNLXWJZ/Sa3oLd9RlxlXs57Bwp6isOS\",\"user:$2y$10$3WYUp.VDpzJRywtrxO1s/uWfUIKpTE4yh5B1d2RCef3hvczYbEWTC\"]"`
 }
 
@@ -46,6 +47,7 @@ func defaultConfig() Config {
 		InventaireUrl:       "https://inventaire.io",
 		DisableRegistration: false,
 		DemoMode:            false,
+		DemoUsername:        "demo",
 		AddUser:             []string{},
 	}
 }