Improve terms of use database schemas

app/TermsOfUseVersion.php

@@ -13,6 +13,12 @@
 class TermsOfUseVersion extends Model {
     use HasFactory;
 
+    protected $primaryKey = 'version';
+
+    protected $keyType = 'string';
+
+    public $incrementing = false;
+
     protected $table = 'tou_versions';
 
     const FIELDS = [

database/migrations/2026_01_08_091559_tou_version.php

@@ -0,0 +1,24 @@
+<?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::table('tou_versions', function (Blueprint $table) {
+            $table->dropColumn('id');
+            $table->string('version', 10)->primary()->change();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void {
+        Schema::dropIfExists('tou_versions');
+    }
+};

database/migrations/2026_01_08_113952_tou_acceptances.php

@@ -0,0 +1,28 @@
+<?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::table('tou_acceptances', function (Blueprint $table) {
+            $table->string('tou_version', 10)->change();
+            $table->foreign('tou_version')
+                ->references('version')
+                ->on('tou_versions')
+                ->cascadeOnUpdate()
+                ->restrictOnDelete();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void {
+        Schema::dropIfExists('tou_acceptances');
+    }
+};