feat: product pricing plans

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

app/Http/Controllers/ProductController.php

@@ -3,12 +3,14 @@
 namespace App\Http\Controllers;
 
 use App\Models\Category;
+use App\Models\PricingPlan;
 use App\Models\Product;
 use App\Models\Tag;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Auth;
 use Illuminate\Support\Facades\Gate;
 use Illuminate\Support\Facades\Storage;
+use Illuminate\Validation\Rule;
 use Laravel\Pennant\Feature;
 
 class ProductController extends Controller
@@ -227,6 +229,11 @@ class ProductController extends Controller
             'screenshots.*' => 'image|mimes:jpeg,png,jpg,gif|max:2048',
             'remove_screenshots' => 'nullable|array',
             'remove_screenshots.*' => 'integer',
+            'plans' => 'nullable|array',
+            'plans.*.name' => 'required|string|max:100',
+            'plans.*.price' => 'required|numeric|min:0|max:99999',
+            'plans.*.period' => ['required', Rule::in(PricingPlan::PERIODS)],
+            'plans.*.description' => 'nullable|string|max:255',
         ];
     }
 
@@ -235,6 +242,18 @@ class ProductController extends Controller
      */
     protected function syncDetails(Request $request, Product $product): void
     {
+        // The submitted plan list replaces all existing plans
+        $product->pricingPlans()->delete();
+        foreach (array_values((array) $request->input('plans', [])) as $i => $plan) {
+            $product->pricingPlans()->create([
+                'name' => $plan['name'],
+                'price' => $plan['price'],
+                'period' => $plan['period'],
+                'description' => $plan['description'] ?? null,
+                'position' => $i,
+            ]);
+        }
+
         // Only rows belonging to this product may be removed
         $ids = array_filter((array) $request->input('remove_screenshots', []));
         if ($ids) {