Move Branches and Team into Settings as Pro features.

Gate multi-branch and team management behind paid plans, nest their
routes under Settings, and remove them from the sidebar Administration
section.

app/Http/Controllers/Frontdesk/Concerns/RequiresPlanFeature.php

@@ -0,0 +1,53 @@
+<?php
+
+namespace App\Http\Controllers\Frontdesk\Concerns;
+
+use App\Services\Frontdesk\PlanService;
+use Illuminate\Http\RedirectResponse;
+use Illuminate\Http\Request;
+use Illuminate\View\View;
+
+trait RequiresPlanFeature
+{
+    /**
+     * For page views: return an upgrade screen when the org lacks the feature.
+     */
+    protected function proFeatureUpgradeView(
+        Request $request,
+        string $feature,
+        string $title,
+        string $description,
+    ): ?View {
+        $organization = $this->organization($request);
+        $plans = app(PlanService::class);
+
+        if ($plans->hasFeature($organization, $feature)) {
+            return null;
+        }
+
+        return view('frontdesk.settings.pro-feature', [
+            'organization' => $organization,
+            'title' => $title,
+            'description' => $description,
+            'proPriceMinor' => $plans->proPricePerBranchMinor(),
+        ]);
+    }
+
+    /**
+     * For mutations: redirect free-plan orgs to the plans page.
+     */
+    protected function denyWithoutFeature(
+        Request $request,
+        string $feature,
+        string $message,
+    ): ?RedirectResponse {
+        $organization = $this->organization($request);
+        if (app(PlanService::class)->hasFeature($organization, $feature)) {
+            return null;
+        }
+
+        return redirect()
+            ->route('frontdesk.pro.index')
+            ->with('error', $message);
+    }
+}