feat(product): add show_in_list toggle and TV price formula

- New `show_in_list` column to control product visibility in customer list
- New `tv_price_formula_enabled` + `tv_price_formula` columns for separate TV pricing
- FormulaPriceService: isTvEnabled() and calculateTvForProduct()
- listTvProducts applies TV formula overrides before returning
- filterProductData handles both new field sets

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

database/migrations/2026_08_19_000001_add_show_in_list_to_products_table.php

@@ -0,0 +1,45 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        if (!Schema::hasTable('products')) {
+            return;
+        }
+
+        if (!Schema::hasColumn('products', 'show_in_list')) {
+            Schema::table('products', function (Blueprint $table) {
+                if (Schema::hasColumn('products', 'show_on_tv')) {
+                    $table->boolean('show_in_list')->default(true)->after('show_on_tv');
+                } elseif (Schema::hasColumn('products', 'show_in_assets')) {
+                    $table->boolean('show_in_list')->default(true)->after('show_in_assets');
+                } elseif (Schema::hasColumn('products', 'show')) {
+                    $table->boolean('show_in_list')->default(true)->after('show');
+                } else {
+                    $table->boolean('show_in_list')->default(true);
+                }
+            });
+        } else {
+            DB::statement(
+                'ALTER TABLE `products` MODIFY COLUMN `show_in_list` TINYINT(1) NOT NULL DEFAULT 1 COMMENT ''نمایش در لیست محصولات مشتری'''
+            );
+        }
+    }
+
+    public function down(): void
+    {
+        if (!Schema::hasTable('products') || !Schema::hasColumn('products', 'show_in_list')) {
+            return;
+        }
+
+        Schema::table('products', function (Blueprint $table) {
+            $table->dropColumn('show_in_list');
+        });
+    }
+};

database/migrations/2026_08_19_000002_add_tv_price_formula_fields_to_products_table.php

@@ -0,0 +1,40 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('products', function (Blueprint $table) {
+            if (! Schema::hasColumn('products', 'tv_price_formula_enabled')) {
+                if (Schema::hasColumn('products', 'price_formula')) {
+                    $table->boolean('tv_price_formula_enabled')->default(false)->after('price_formula');
+                } else {
+                    $table->boolean('tv_price_formula_enabled')->default(false);
+                }
+            }
+            if (! Schema::hasColumn('products', 'tv_price_formula')) {
+                $table->text('tv_price_formula')->nullable()->after('tv_price_formula_enabled');
+            }
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('products', function (Blueprint $table) {
+            $drop = [];
+            if (Schema::hasColumn('products', 'tv_price_formula_enabled')) {
+                $drop[] = 'tv_price_formula_enabled';
+            }
+            if (Schema::hasColumn('products', 'tv_price_formula')) {
+                $drop[] = 'tv_price_formula';
+            }
+            if ($drop) {
+                $table->dropColumn($drop);
+            }
+        });
+    }
+};