feat: Netzwerk-Modul v0.5.0 – Import, Geräte-Tracking, Ereignislog

database/migrations/2026_06_29_100001_create_network_scans_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
+{
+    public function up(): void
+    {
+        Schema::create('network_scans', function (Blueprint $table) {
+            $table->id();
+            $table->string('subnet');                    // z.B. 192.168.86.0/24
+            $table->string('source')->default('manual'); // manual | import | auto
+            $table->string('scanner')->nullable();       // z.B. "Angry IP Scanner 3.9.3"
+            $table->integer('total_hosts')->default(0);
+            $table->integer('online_hosts')->default(0);
+            $table->integer('new_devices')->default(0);
+            $table->integer('changed_devices')->default(0);
+            $table->text('notes')->nullable();
+            $table->foreignId('created_by')->nullable()->constrained('users')->nullOnDelete();
+            $table->timestamps();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('network_scans');
+    }
+};

database/migrations/2026_06_29_100002_create_network_devices_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
+{
+    public function up(): void
+    {
+        Schema::create('network_devices', function (Blueprint $table) {
+            $table->id();
+            $table->string('mac_address')->unique();     // Primärschlüssel-Logik
+            $table->string('current_ip')->nullable();
+            $table->string('hostname')->nullable();
+            $table->string('mac_vendor')->nullable();    // Hersteller
+            $table->string('status')->default('unknown'); // online | offline | unknown
+            $table->string('netbios_name')->nullable();
+            $table->integer('ttl')->nullable();
+            $table->text('ports')->nullable();
+            $table->text('notes')->nullable();           // manuelle Notizen
+            $table->string('label')->nullable();         // Benutzerfreundlicher Name
+            $table->timestamp('first_seen_at')->nullable();
+            $table->timestamp('last_seen_at')->nullable();
+            $table->timestamps();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('network_devices');
+    }
+};

database/migrations/2026_06_29_100003_create_network_hosts_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
+{
+    public function up(): void
+    {
+        Schema::create('network_hosts', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('scan_id')->constrained('network_scans')->cascadeOnDelete();
+            $table->foreignId('device_id')->nullable()->constrained('network_devices')->nullOnDelete();
+            $table->string('ip_address');
+            $table->string('mac_address')->nullable();
+            $table->string('hostname')->nullable();
+            $table->string('mac_vendor')->nullable();
+            $table->string('status')->default('offline'); // online | offline | filtered
+            $table->integer('ping_ms')->nullable();
+            $table->string('netbios_info')->nullable();
+            $table->integer('ttl')->nullable();
+            $table->text('ports')->nullable();
+            $table->text('http_sender')->nullable();
+            $table->text('web_detection')->nullable();
+            $table->timestamps();
+
+            $table->index(['scan_id', 'ip_address']);
+            $table->index('mac_address');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('network_hosts');
+    }
+};

database/migrations/2026_06_29_100004_create_network_device_events_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
+{
+    public function up(): void
+    {
+        Schema::create('network_device_events', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('device_id')->constrained('network_devices')->cascadeOnDelete();
+            $table->foreignId('scan_id')->nullable()->constrained('network_scans')->nullOnDelete();
+            $table->string('event_type'); // new_device | ip_changed | came_online | went_offline | manual_note | label_changed
+            $table->string('old_value')->nullable();
+            $table->string('new_value')->nullable();
+            $table->text('description')->nullable();
+            $table->boolean('documented')->default(false);  // manuell bestätigt
+            $table->foreignId('documented_by')->nullable()->constrained('users')->nullOnDelete();
+            $table->timestamp('documented_at')->nullable();
+            $table->timestamps();
+
+            $table->index(['device_id', 'created_at']);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('network_device_events');
+    }
+};