Initial project

database/migrations/2026_04_30_204015_create_messages_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('messages', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('conversation_id')->constrained()->cascadeOnDelete();
+            $table->foreignId('user_id')->nullable()->constrained()->nullOnDelete();
+            $table->string('type')->default('text')->index();
+            $table->text('body');
+            $table->json('metadata')->nullable();
+            $table->timestamp('edited_at')->nullable();
+            $table->timestamps();
+
+            $table->index(['conversation_id', 'created_at']);
+            $table->index(['user_id', 'created_at']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('messages');
+    }
+};