added attchments

database/migrations/2026_01_24_140100_create_attachments_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
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('attachments', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('thread_id')->nullable()->constrained('threads')->nullOnDelete();
+            $table->foreignId('post_id')->nullable()->constrained('posts')->nullOnDelete();
+            $table->foreignId('user_id')->nullable()->constrained('users')->nullOnDelete();
+            $table->string('disk', 50)->default('local');
+            $table->string('path');
+            $table->string('original_name');
+            $table->string('extension', 30)->nullable();
+            $table->string('mime_type', 150);
+            $table->unsignedBigInteger('size_bytes');
+            $table->timestamps();
+            $table->softDeletes();
+
+            $table->index('thread_id', 'idx_attachments_thread_id');
+            $table->index('post_id', 'idx_attachments_post_id');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('attachments');
+    }
+};