improvement: UI/UX improved for v1 standalone treatments/cases feature.

frontend/messages/en.json

@@ -499,6 +499,8 @@
     "addCaseSubtitle": "Enter the referring clinic or patient, then add prosthesis lines. Start when the case is ready.",
     "startCase": "Start",
     "draftBadge": "Draft",
+    "receivedBadge": "Received",
+    "generatedBadge": "Generated",
     "referringClinic": "Referring clinic",
     "referringDentist": "Dentist",
     "patientName": "Patient name",
@@ -542,6 +544,10 @@
     "searchPlaceholder": "Search patient or clinic…",
     "filterClinic": "Clinic",
     "filterClinicAll": "All clinics",
+    "filterOrigin": "Case source",
+    "filterOriginAll": "All sources",
+    "filterOriginReceived": "Received",
+    "filterOriginGenerated": "Generated",
     "filterStatus": "Status",
     "filterStatusAll": "All statuses",
     "filterStepCompleted": "Step completed",
@@ -699,7 +705,8 @@
     "noAppointment": "No appointment",
     "walkIn": "Walk-in",
     "newTreatment": "New treatment",
-    "newWalkInTreatment": "Walk-in treatment",
+    "newTreatmentPatientPrompt": "Who is this visit for?",
+    "walkInPickerHint": "No named patient — always available, no search needed.",
     "errorCreateTreatment": "Could not create treatment.",
     "deleteEmptyTreatment": "Delete empty treatment",
     "confirmDeleteEmptyTreatment": "Delete this treatment? It has no details yet.",