engagement system

database/migrations/2026_02_06_125733_create_upvotes_table.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('upvotes', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('user_id')->constrained()->onDelete('cascade');
+            $table->foreignId('product_id')->constrained()->onDelete('cascade');
+            $table->timestamp('created_at')->useCurrent();
+
+            // Unique composite index to prevent duplicate upvotes
+            $table->unique(['user_id', 'product_id']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('upvotes');
+    }
+};

database/migrations/2026_02_06_125740_create_comments_table.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('comments', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('user_id')->constrained()->onDelete('cascade');
+            $table->foreignId('product_id')->constrained()->onDelete('cascade');
+            $table->text('body');
+            $table->timestamps();
+
+            $table->index('product_id');
+            $table->index('user_id');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('comments');
+    }
+};

database/migrations/2026_02_06_125741_create_bookmarks_table.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('bookmarks', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('user_id')->constrained()->onDelete('cascade');
+            $table->foreignId('product_id')->constrained()->onDelete('cascade');
+            $table->timestamp('created_at')->useCurrent();
+
+            // Unique composite index to prevent duplicate bookmarks
+            $table->unique(['user_id', 'product_id']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('bookmarks');
+    }
+};