Initial: Laravel 13 setup with multi-tenant schema

database/migrations/2026_04_19_220212_create_readings_table.php

@@ -0,0 +1,19 @@
+<?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('readings', function (Blueprint $t) {
+   $t->bigIncrements('id');
+   $t->foreignId('device_id')->constrained('devices')->cascadeOnDelete();
+   $t->string('metric',60);
+   $t->decimal('value',10,3)->nullable();
+   $t->string('value_text',50)->nullable();
+   $t->timestamp('recorded_at',3);
+   $t->index(['device_id','metric','recorded_at'],'idx_dmt');
+   $t->index('recorded_at','idx_rec');
+  });
+ }
+ public function down(): void { Schema::dropIfExists('readings'); }
+};