improvement: treatment plan now save on debounce. save treatment button removed.

frontend/messages/en.json

@@ -463,6 +463,7 @@
     "sendThisCase": "Send this case",
     "labDispatchTitle": "Lab dispatch",
     "labDispatchSubtitle": "Group lab-dependent details into shipments and send them to linked labs.",
+    "labDispatchSendHint": "Shipment grouping is saved when you send to the lab.",
     "addLabShipment": "Add lab shipment",
     "labShipmentLabel": "Shipment {n}",
     "includeDetails": "Include treatment details",
@@ -482,6 +483,9 @@
     "saveDraft": "Save treatment draft",
     "unsavedChanges": "Unsaved changes",
     "draftSaved": "Draft saved",
+    "saveStatusSaving": "Saving…",
+    "saveStatusSaved": "All changes saved",
+    "saveStatusError": "Could not save — check your connection",
     "sendSavesFirst": "Sending is per case and saves first automatically.",
     "historyTitle": "Previous treatments",
     "historySubtitle": "Completed treatments for this patient. Each case is listed separately.",