init ai sdk

database/migrations/2026_05_10_073636_create_agent_conversations_table.php

@@ -0,0 +1,50 @@
+<?php
+
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+use Laravel\Ai\Migrations\AiMigration;
+
+return new class extends AiMigration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('agent_conversations', function (Blueprint $table) {
+            $table->string('id', 36)->primary();
+            $table->foreignId('user_id')->nullable();
+            $table->string('title');
+            $table->timestamps();
+
+            $table->index(['user_id', 'updated_at']);
+        });
+
+        Schema::create('agent_conversation_messages', function (Blueprint $table) {
+            $table->string('id', 36)->primary();
+            $table->string('conversation_id', 36)->index();
+            $table->foreignId('user_id')->nullable();
+            $table->string('agent');
+            $table->string('role', 25);
+            $table->text('content');
+            $table->text('attachments');
+            $table->text('tool_calls');
+            $table->text('tool_results');
+            $table->text('usage');
+            $table->text('meta');
+            $table->timestamps();
+
+            $table->index(['conversation_id', 'user_id', 'updated_at'], 'conversation_index');
+            $table->index(['user_id']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('agent_conversations');
+        Schema::dropIfExists('agent_conversation_messages');
+    }
+};