Add table for period statistics, and see what happens re: performance.

database/migrations/2025_09_25_175248_create_period_statistics.php

@@ -0,0 +1,47 @@
+<?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('period_statistics', function (Blueprint $table) {
+            $table->id();
+            $table->timestamps();
+            $table->softDeletes();
+            $table->integer('primary_statable_id', false, true)->nullable();
+            $table->string('primary_statable_type', 255)->nullable();
+
+            $table->integer('secondary_statable_id', false, true)->nullable();
+            $table->string('secondary_statable_type', 255)->nullable();
+
+            $table->integer('tertiary_statable_id', false, true)->nullable();
+            $table->string('tertiary_statable_type', 255)->nullable();
+
+            $table->integer('transaction_currency_id', false, true);
+            $table->foreign('transaction_currency_id')->references('id')->on('transaction_currencies')->onDelete('cascade');
+
+            $table->dateTime('start')->nullable();
+            $table->string('start_tz', 50)->nullable();
+            $table->dateTime('end')->nullable();
+            $table->string('end_tz', 50)->nullable();
+            $table->string('type',255);
+            $table->integer('count', false, true)->default(0);
+            $table->decimal('amount', 32, 12);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('period_statistics');
+    }
+};