Added Printer Spoofer for testing purposes

local_backend/routers/settings.py

@@ -16,6 +16,7 @@ VALID_SETTINGS = {
     "business_day.force_close_allowed": "Allow force-closing business day with open tables",
     "system.timezone": "IANA timezone name used by the backend container (e.g. Europe/Athens). Requires container restart to take effect.",
     "ui.table_colours": "JSON blob of table card colour scheme (light + dark modes) for the Waiter PWA.",
+    "dev.spoof_printing": "When enabled, all print jobs are silently dropped. Devices behave as if printing succeeded.",
 }
 
 DEFAULTS = {
@@ -24,6 +25,7 @@ DEFAULTS = {
     "business_day.force_close_allowed": "true",
     "system.timezone": "Europe/Athens",
     "ui.table_colours": "",
+    "dev.spoof_printing": "false",
 }