Implement Care RBAC role→permission→app matrix.

Replace broad doctor/nurse specialty access with granular roles and primary
apps, permission inheritance for lab/BB managers, and cannot-rules for
discharge, lab approve, and cashier vs billing officer.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Http/Controllers/Care/PractitionerController.php

@@ -210,7 +210,7 @@ class PractitionerController extends Controller
     {
         return Member::owned($owner)
             ->where('organization_id', $organizationId)
-            ->whereIn('role', ['doctor', 'nurse', 'lab_technician', 'lab_manager', 'pharmacist', 'blood_bank_manager', 'hospital_admin', 'super_admin'])
+            ->whereIn('role', app(\App\Services\Care\CarePermissions::class)->clinicalPractitionerRoles())
             ->orderBy('user_ref')
             ->get();
     }