Memoize specialty nav and branch lookups to stop per-request N+1.

Sidebar was re-querying practitioners for every specialty module and also
calling ensureDefaultModulesProvisioned on each page render, which showed
up as multi-second PHP-FPM slow logs on Care.

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

resources/views/partials/sidebar.blade.php

@@ -81,12 +81,9 @@
             // Desk specialists skip this group (redundant single-desk list); dashboard cards remain.
             if ($permissions->handlesFloorCare($member) && $organization) {
                 $specialtyService = app(\App\Services\Care\SpecialtyModuleService::class);
-                $specialtyService->ensureDefaultModulesProvisioned(
-                    $organization,
-                    (string) $organization->owner_ref,
-                );
-                if ($specialtyService->shouldShowSpecialtyNav($organization, $member)) {
-                    foreach ($specialtyService->enabledModulesForMember($organization, $member) as $item) {
+                $specialtyModulesForNav = $specialtyService->enabledModulesForMember($organization, $member);
+                if ($specialtyModulesForNav !== [] && $specialtyService->shouldShowSpecialtyNav($organization, $member)) {
+                    foreach ($specialtyModulesForNav as $item) {
                         $key = $item['key'];
                         $label = $item['definition']['nav_label'] ?? $item['definition']['label'] ?? $key;
                         $nav[] = [