first commit

database/migrations/2026_03_21_000003_create_tables_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
+{
+    public function up(): void
+    {
+        Schema::create('tables', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('source_database_id')->constrained('source_databases')->cascadeOnDelete();
+            $table->string('schema_name')->default('public');
+            $table->string('table_name');
+            $table->text('comment')->nullable();
+            $table->json('options')->nullable();
+            $table->timestamp('last_checked_at')->nullable();
+            $table->timestamps();
+
+            $table->unique(['source_database_id', 'schema_name', 'table_name'], 'unique_table');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('tables');
+    }
+};