Demo mode: automatically connect as demo user

internal/config/config.go

@@ -19,6 +19,7 @@ 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'"`
 }
 
 func defaultConfig() Config {
@@ -31,6 +32,7 @@ func defaultConfig() Config {
 		Limit:               100,
 		InventaireUrl:       "https://inventaire.io",
 		DisableRegistration: false,
+		DemoMode:            false,
 	}
 }