Phase 2: Implement Domain & Mailbox persistence, Analytics, and fix pagination issues

database/migrations/2026_03_05_112935_create_domains_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
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('domains', function (Blueprint $table) {
+            $table->id();
+            $table->char('domain_hash', 64)->unique()->index();
+            $table->string('name')->unique();
+            $table->json('allowed_types'); // ['public', 'private', 'custom', 'premium']
+            $table->boolean('is_active')->default(true);
+            $table->boolean('is_archived')->default(false);
+            $table->softDeletes();
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('domains');
+    }
+};

database/migrations/2026_03_05_113015_create_mailboxes_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
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('mailboxes', function (Blueprint $table) {
+            $table->id();
+            $table->char('mailbox_hash', 64)->unique()->index();
+            $table->char('domain_hash', 64)->index();
+            $table->foreignId('user_id')->nullable()->constrained()->onDelete('set null');
+            $table->string('session_id')->nullable()->index();
+            $table->string('address')->unique()->index();
+            $table->string('type'); // public, private, custom, premium
+            $table->string('created_ip', 45)->nullable();
+            $table->string('last_accessed_ip', 45)->nullable();
+            $table->timestamp('last_accessed_at')->nullable();
+            $table->boolean('is_blocked')->default(false);
+            $table->text('block_reason')->nullable();
+            $table->timestamp('blocked_at')->nullable();
+            $table->timestamp('expires_at')->nullable();
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('mailboxes');
+    }
+};