feat(server): evaluate price alerts per product and fix gold discharge rounding

Alerts now bind to a product_id and share one evaluator; displayed gold within a rounding step discharges the full wallet.

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

app/Http/Controllers/Admin/PriceTriggerController.php

@@ -13,6 +13,9 @@ class PriceTriggerController extends Controller
     public function table(Request $request)
     {
         $query = PriceTrigger::query()->with('customer');
+        if (PriceTrigger::hasProductIdColumn()) {
+            $query->with('product:id,title');
+        }
 
         TableEngine::create($query, $request->all())
             ->initSearch(['customer_id', 'target_price', 'action', 'price_condition'])
@@ -31,7 +34,12 @@ class PriceTriggerController extends Controller
             'is_active' => $data['is_active'] ?? true,
         ]);
 
-        return response()->json($trigger->load('customer'), 201);
+        $relations = ['customer'];
+        if (PriceTrigger::hasProductIdColumn()) {
+            $relations[] = 'product:id,title';
+        }
+
+        return response()->json($trigger->load($relations), 201);
     }
 
     public function update(Request $request, int $id)
@@ -71,12 +79,17 @@ class PriceTriggerController extends Controller
     {
         $rules = [
             'customer_id' => ($partial ? 'sometimes|' : '') . 'required|integer|exists:customers,id',
+            'product_id' => ($partial ? 'sometimes|' : '') . 'required|integer|exists:products,id',
             'target_price' => ($partial ? 'sometimes|' : '') . 'required|numeric|min:1',
             'price_condition' => ($partial ? 'sometimes|' : '') . 'required|in:>,<',
             'action' => ($partial ? 'sometimes|' : '') . 'required|in:sms,email',
             'is_active' => 'sometimes|boolean',
         ];
 
+        if (! PriceTrigger::hasProductIdColumn()) {
+            unset($rules['product_id']);
+        }
+
         $data = $request->validate($rules);
 
         if (isset($data['price_condition']) && !in_array($data['price_condition'], ['>', '<'], true)) {