feat: version 4.11.0 -- Agenda medica refactorizada, aviso de citas futuras y correcciones

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

frontend/src/i18n/messages.js

@@ -53,7 +53,11 @@ export const messages = {
     clinic_kind_other: 'Otro',
     clinic_title: 'Título',
     clinic_staff: 'Personal',
-    clinic_user_id: 'ID de usuario',
+    clinic_user: 'Usuario',
+    clinic_scope: 'Rol en la agenda',
+    clinic_add_staff: 'Agregar personal',
+    clinic_add_segment: 'Agregar tramo',
+    clinic_patient_upcoming: 'Este paciente ya tiene citas pendientes (puedes agendar igual):',
     clinic_scope_all: 'Recepción (todos)',
     clinic_scope_own: 'Médico (propia)',
     clinic_is_doctor: 'Es médico',
@@ -743,7 +747,11 @@ export const messages = {
     clinic_kind_other: 'Other',
     clinic_title: 'Title',
     clinic_staff: 'Staff',
-    clinic_user_id: 'User ID',
+    clinic_user: 'User',
+    clinic_scope: 'Agenda role',
+    clinic_add_staff: 'Add staff',
+    clinic_add_segment: 'Add time slot',
+    clinic_patient_upcoming: 'This patient already has upcoming appointments (you can still book):',
     clinic_scope_all: 'Reception (all)',
     clinic_scope_own: 'Doctor (own)',
     clinic_is_doctor: 'Is doctor',