Integrate Mailer::class into System_Log::class, removed Zmodem Server/Client

database/migrations/2023_12_10_143252_fix_mailer_id.php

@@ -0,0 +1,46 @@
+<?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('system_logs',function (Blueprint $table) {
+			$table->bigInteger('mailer_id')->nullable()->after('system_id');
+			$table->foreign('mailer_id')->references('id')->on('mailers');
+		});
+
+		DB::update('UPDATE system_logs SET mailer_id=? WHERE sessiontype=?',[1,2]);
+		DB::update('UPDATE system_logs SET mailer_id=? WHERE sessiontype=?',[2,0]);
+		DB::update('ALTER TABLE system_logs ALTER COLUMN mailer_id SET NOT NULL');
+
+		Schema::table('system_logs',function (Blueprint $table) {
+			$table->dropColumn(['sessiontype']);
+		});
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+		Schema::table('system_logs',function (Blueprint $table) {
+			$table->integer('sessiontype')->nullable();
+		});
+
+		DB::update('UPDATE system_logs SET sessiontype=? WHERE mailer_id=?',[0,2]);
+		DB::update('UPDATE system_logs SET sessiontype=? WHERE mailer_id=?',[2,1]);
+		DB::update('ALTER TABLE system_logs ALTER COLUMN sessiontype SET NOT NULL');
+
+		Schema::table('system_logs',function (Blueprint $table) {
+			$table->dropForeign(['mailer_id']);
+			$table->dropColumn(['mailer_id']);
+		});
+    }
+};