diff --git a/app/app/Models/Activity.php b/app/app/Models/Activity.php
index d0779b4..ac30358 100644
--- a/app/app/Models/Activity.php
+++ b/app/app/Models/Activity.php
@@ -2,13 +2,14 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Concerns\HasUuids;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 
 class Activity extends Model
 {
-    use HasFactory;
+    use HasFactory, HasUuids;
 
     protected $fillable = [
         'user_id', 'type', 'level',
diff --git a/app/app/Models/Backup.php b/app/app/Models/Backup.php
index 57a8dac..5f9c42d 100644
--- a/app/app/Models/Backup.php
+++ b/app/app/Models/Backup.php
@@ -2,13 +2,14 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Concerns\HasUuids;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 
 class Backup extends Model
 {
-    use HasFactory;
+    use HasFactory, HasUuids;
 
     protected $fillable = [
         'site_id', 'type', 'size_bytes', 'status',
diff --git a/app/app/Models/Certificate.php b/app/app/Models/Certificate.php
index f4cb077..0386551 100644
--- a/app/app/Models/Certificate.php
+++ b/app/app/Models/Certificate.php
@@ -2,13 +2,14 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Concerns\HasUuids;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 
 class Certificate extends Model
 {
-    use HasFactory;
+    use HasFactory, HasUuids;
 
     protected $fillable = [
         'site_id', 'domain', 'issuer',
diff --git a/app/app/Models/Cluster.php b/app/app/Models/Cluster.php
index b87e607..65501a4 100644
--- a/app/app/Models/Cluster.php
+++ b/app/app/Models/Cluster.php
@@ -2,13 +2,14 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Concerns\HasUuids;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\HasMany;
 
 class Cluster extends Model
 {
-    use HasFactory;
+    use HasFactory, HasUuids;
 
     protected $fillable = [
         'name', 'slug', 'region', 'env', 'monthly_price_cents',
diff --git a/app/app/Models/Cron.php b/app/app/Models/Cron.php
index fa8a716..07ad420 100644
--- a/app/app/Models/Cron.php
+++ b/app/app/Models/Cron.php
@@ -2,13 +2,14 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Concerns\HasUuids;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 
 class Cron extends Model
 {
-    use HasFactory;
+    use HasFactory, HasUuids;
 
     protected $fillable = [
         'site_id', 'name', 'expression', 'command',
diff --git a/app/app/Models/Invitation.php b/app/app/Models/Invitation.php
index 5bf6177..a69ba2d 100644
--- a/app/app/Models/Invitation.php
+++ b/app/app/Models/Invitation.php
@@ -2,6 +2,7 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Concerns\HasUuids;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
@@ -9,7 +10,7 @@ use Illuminate\Support\Str;
 
 class Invitation extends Model
 {
-    use HasFactory;
+    use HasFactory, HasUuids;
 
     protected $fillable = [
         'email', 'role', 'invited_by_user_id',
diff --git a/app/app/Models/SecurityEvent.php b/app/app/Models/SecurityEvent.php
index 46cab08..05a163b 100644
--- a/app/app/Models/SecurityEvent.php
+++ b/app/app/Models/SecurityEvent.php
@@ -2,13 +2,14 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Concerns\HasUuids;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 
 class SecurityEvent extends Model
 {
-    use HasFactory;
+    use HasFactory, HasUuids;
 
     protected $fillable = [
         'site_id', 'type', 'severity', 'blocked',
diff --git a/app/app/Models/Server.php b/app/app/Models/Server.php
index 236ab2a..0b59487 100644
--- a/app/app/Models/Server.php
+++ b/app/app/Models/Server.php
@@ -2,6 +2,7 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Concerns\HasUuids;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
@@ -9,7 +10,7 @@ use Illuminate\Database\Eloquent\Relations\HasMany;
 
 class Server extends Model
 {
-    use HasFactory;
+    use HasFactory, HasUuids;
 
     protected $fillable = [
         'cluster_id', 'name', 'region', 'country_flag', 'env',
diff --git a/app/app/Models/Site.php b/app/app/Models/Site.php
index 01f0c66..f63cd28 100644
--- a/app/app/Models/Site.php
+++ b/app/app/Models/Site.php
@@ -2,6 +2,7 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Concerns\HasUuids;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
@@ -10,7 +11,7 @@ use Illuminate\Database\Eloquent\Relations\HasOne;
 
 class Site extends Model
 {
-    use HasFactory;
+    use HasFactory, HasUuids;
 
     protected $fillable = [
         'server_id', 'domain', 'name',
diff --git a/app/app/Models/TeamMember.php b/app/app/Models/TeamMember.php
index d2cf8eb..c740f12 100644
--- a/app/app/Models/TeamMember.php
+++ b/app/app/Models/TeamMember.php
@@ -2,13 +2,14 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Concerns\HasUuids;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 
 class TeamMember extends Model
 {
-    use HasFactory;
+    use HasFactory, HasUuids;
 
     protected $fillable = [
         'user_id', 'role', 'scope', 'two_fa_enabled', 'last_active_at',
diff --git a/app/app/Models/User.php b/app/app/Models/User.php
index 68f3a66..d2d2e04 100644
--- a/app/app/Models/User.php
+++ b/app/app/Models/User.php
@@ -4,6 +4,7 @@ namespace App\Models;
 
 // use Illuminate\Contracts\Auth\MustVerifyEmail;
 use Database\Factories\UserFactory;
+use Illuminate\Database\Eloquent\Concerns\HasUuids;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Foundation\Auth\User as Authenticatable;
 use Illuminate\Notifications\Notifiable;
@@ -11,7 +12,7 @@ use Illuminate\Notifications\Notifiable;
 class User extends Authenticatable
 {
     /** @use HasFactory<UserFactory> */
-    use HasFactory, Notifiable;
+    use HasFactory, HasUuids, Notifiable;
 
     /**
      * The attributes that are mass assignable.
diff --git a/app/database/migrations/0001_01_01_000000_create_users_table.php b/app/database/migrations/0001_01_01_000000_create_users_table.php
index 05fb5d9..e8a4530 100644
--- a/app/database/migrations/0001_01_01_000000_create_users_table.php
+++ b/app/database/migrations/0001_01_01_000000_create_users_table.php
@@ -12,7 +12,7 @@ return new class extends Migration
     public function up(): void
     {
         Schema::create('users', function (Blueprint $table) {
-            $table->id();
+            $table->uuid('id')->primary();
             $table->string('name');
             $table->string('email')->unique();
             $table->timestamp('email_verified_at')->nullable();
@@ -29,7 +29,7 @@ return new class extends Migration
 
         Schema::create('sessions', function (Blueprint $table) {
             $table->string('id')->primary();
-            $table->foreignId('user_id')->nullable()->index();
+            $table->foreignUuid('user_id')->nullable()->index();
             $table->string('ip_address', 45)->nullable();
             $table->text('user_agent')->nullable();
             $table->longText('payload');
diff --git a/app/database/migrations/0001_01_01_000002_create_jobs_table.php b/app/database/migrations/0001_01_01_000002_create_jobs_table.php
index 425e705..9be52b9 100644
--- a/app/database/migrations/0001_01_01_000002_create_jobs_table.php
+++ b/app/database/migrations/0001_01_01_000002_create_jobs_table.php
@@ -12,7 +12,7 @@ return new class extends Migration
     public function up(): void
     {
         Schema::create('jobs', function (Blueprint $table) {
-            $table->id();
+            $table->uuid('id')->primary();
             $table->string('queue')->index();
             $table->longText('payload');
             $table->unsignedTinyInteger('attempts');
@@ -35,7 +35,7 @@ return new class extends Migration
         });
 
         Schema::create('failed_jobs', function (Blueprint $table) {
-            $table->id();
+            $table->uuid('id')->primary();
             $table->string('uuid')->unique();
             $table->text('connection');
             $table->text('queue');
diff --git a/app/database/migrations/2026_05_31_200000_create_clusters_table.php b/app/database/migrations/2026_05_31_200000_create_clusters_table.php
index b0b9c7f..b0c5d64 100644
--- a/app/database/migrations/2026_05_31_200000_create_clusters_table.php
+++ b/app/database/migrations/2026_05_31_200000_create_clusters_table.php
@@ -8,7 +8,7 @@ return new class extends Migration {
     public function up(): void
     {
         Schema::create('clusters', function (Blueprint $table) {
-            $table->id();
+            $table->uuid('id')->primary();
             $table->string('name');
             $table->string('slug')->unique();
             $table->string('region', 32);                  // e.g. eu-central-1
diff --git a/app/database/migrations/2026_05_31_200001_create_servers_table.php b/app/database/migrations/2026_05_31_200001_create_servers_table.php
index 3fb1862..fe6c779 100644
--- a/app/database/migrations/2026_05_31_200001_create_servers_table.php
+++ b/app/database/migrations/2026_05_31_200001_create_servers_table.php
@@ -8,8 +8,8 @@ return new class extends Migration {
     public function up(): void
     {
         Schema::create('servers', function (Blueprint $table) {
-            $table->id();
-            $table->foreignId('cluster_id')->nullable()->constrained()->nullOnDelete();
+            $table->uuid('id')->primary();
+            $table->foreignUuid('cluster_id')->nullable()->constrained()->nullOnDelete();
             $table->string('name', 64);                        // eu-prod-01
             $table->string('region', 32);                      // eu-central-1
             $table->string('country_flag', 4)->default('🇩🇪'); // emoji
diff --git a/app/database/migrations/2026_05_31_200002_create_sites_table.php b/app/database/migrations/2026_05_31_200002_create_sites_table.php
index 7289bc8..3c187fd 100644
--- a/app/database/migrations/2026_05_31_200002_create_sites_table.php
+++ b/app/database/migrations/2026_05_31_200002_create_sites_table.php
@@ -8,8 +8,8 @@ return new class extends Migration {
     public function up(): void
     {
         Schema::create('sites', function (Blueprint $table) {
-            $table->id();
-            $table->foreignId('server_id')->constrained()->cascadeOnDelete();
+            $table->uuid('id')->primary();
+            $table->foreignUuid('server_id')->constrained()->cascadeOnDelete();
             $table->string('domain')->unique();
             $table->string('name')->nullable();
             $table->string('wp_version', 16)->default('6.4');
diff --git a/app/database/migrations/2026_05_31_200003_create_backups_table.php b/app/database/migrations/2026_05_31_200003_create_backups_table.php
index 35488f5..7d57467 100644
--- a/app/database/migrations/2026_05_31_200003_create_backups_table.php
+++ b/app/database/migrations/2026_05_31_200003_create_backups_table.php
@@ -8,8 +8,8 @@ return new class extends Migration {
     public function up(): void
     {
         Schema::create('backups', function (Blueprint $table) {
-            $table->id();
-            $table->foreignId('site_id')->constrained()->cascadeOnDelete();
+            $table->uuid('id')->primary();
+            $table->foreignUuid('site_id')->constrained()->cascadeOnDelete();
             $table->enum('type', ['hourly', 'daily', 'manual', 'snapshot'])->default('daily');
             $table->unsignedBigInteger('size_bytes')->default(0);
             $table->enum('status', ['queued', 'running', 'ok', 'failed'])->default('queued');
diff --git a/app/database/migrations/2026_05_31_200004_create_team_members_table.php b/app/database/migrations/2026_05_31_200004_create_team_members_table.php
index d7ef4e4..a7b5412 100644
--- a/app/database/migrations/2026_05_31_200004_create_team_members_table.php
+++ b/app/database/migrations/2026_05_31_200004_create_team_members_table.php
@@ -8,8 +8,8 @@ return new class extends Migration {
     public function up(): void
     {
         Schema::create('team_members', function (Blueprint $table) {
-            $table->id();
-            $table->foreignId('user_id')->constrained()->cascadeOnDelete();
+            $table->uuid('id')->primary();
+            $table->foreignUuid('user_id')->constrained()->cascadeOnDelete();
             $table->enum('role', ['owner', 'admin', 'developer', 'viewer'])->default('viewer');
             $table->string('scope')->nullable();          // e.g. "All clusters", "eu-prod-*"
             $table->boolean('two_fa_enabled')->default(false);
diff --git a/app/database/migrations/2026_05_31_200005_create_invitations_table.php b/app/database/migrations/2026_05_31_200005_create_invitations_table.php
index 815ac36..e2acdc0 100644
--- a/app/database/migrations/2026_05_31_200005_create_invitations_table.php
+++ b/app/database/migrations/2026_05_31_200005_create_invitations_table.php
@@ -8,10 +8,10 @@ return new class extends Migration {
     public function up(): void
     {
         Schema::create('invitations', function (Blueprint $table) {
-            $table->id();
+            $table->uuid('id')->primary();
             $table->string('email');
             $table->enum('role', ['admin', 'developer', 'viewer'])->default('developer');
-            $table->foreignId('invited_by_user_id')->nullable()->constrained('users')->nullOnDelete();
+            $table->foreignUuid('invited_by_user_id')->nullable()->constrained('users')->nullOnDelete();
             $table->string('token', 64)->unique();
             $table->timestamp('sent_at')->nullable();
             $table->timestamp('accepted_at')->nullable();
diff --git a/app/database/migrations/2026_05_31_200006_create_security_events_table.php b/app/database/migrations/2026_05_31_200006_create_security_events_table.php
index a1ac6e5..4c50da5 100644
--- a/app/database/migrations/2026_05_31_200006_create_security_events_table.php
+++ b/app/database/migrations/2026_05_31_200006_create_security_events_table.php
@@ -8,8 +8,8 @@ return new class extends Migration {
     public function up(): void
     {
         Schema::create('security_events', function (Blueprint $table) {
-            $table->id();
-            $table->foreignId('site_id')->nullable()->constrained()->cascadeOnDelete();
+            $table->uuid('id')->primary();
+            $table->foreignUuid('site_id')->nullable()->constrained()->cascadeOnDelete();
             $table->enum('type', ['brute_force', 'tor_exit', 'malware', 'cert_expiring', 'firewall', 'scan'])
                   ->default('firewall');
             $table->enum('severity', ['info', 'low', 'medium', 'high', 'critical'])->default('low');
diff --git a/app/database/migrations/2026_05_31_200007_create_certificates_table.php b/app/database/migrations/2026_05_31_200007_create_certificates_table.php
index a4616c0..86f2891 100644
--- a/app/database/migrations/2026_05_31_200007_create_certificates_table.php
+++ b/app/database/migrations/2026_05_31_200007_create_certificates_table.php
@@ -8,8 +8,8 @@ return new class extends Migration {
     public function up(): void
     {
         Schema::create('certificates', function (Blueprint $table) {
-            $table->id();
-            $table->foreignId('site_id')->constrained()->cascadeOnDelete();
+            $table->uuid('id')->primary();
+            $table->foreignUuid('site_id')->constrained()->cascadeOnDelete();
             $table->string('domain');
             $table->string('issuer', 64)->default("Let's Encrypt");
             $table->timestamp('issued_at')->nullable();
diff --git a/app/database/migrations/2026_05_31_200008_create_activities_table.php b/app/database/migrations/2026_05_31_200008_create_activities_table.php
index 93b3138..4c9be7d 100644
--- a/app/database/migrations/2026_05_31_200008_create_activities_table.php
+++ b/app/database/migrations/2026_05_31_200008_create_activities_table.php
@@ -8,8 +8,8 @@ return new class extends Migration {
     public function up(): void
     {
         Schema::create('activities', function (Blueprint $table) {
-            $table->id();
-            $table->foreignId('user_id')->nullable()->constrained()->nullOnDelete();
+            $table->uuid('id')->primary();
+            $table->foreignUuid('user_id')->nullable()->constrained()->nullOnDelete();
             $table->enum('type', ['deploy', 'backup', 'update', 'security', 'system', 'login'])->default('system');
             $table->enum('level', ['info', 'success', 'warning', 'error'])->default('info');
             $table->string('message');
diff --git a/app/database/migrations/2026_05_31_200009_create_crons_table.php b/app/database/migrations/2026_05_31_200009_create_crons_table.php
index 32647be..1e85f7d 100644
--- a/app/database/migrations/2026_05_31_200009_create_crons_table.php
+++ b/app/database/migrations/2026_05_31_200009_create_crons_table.php
@@ -8,8 +8,8 @@ return new class extends Migration {
     public function up(): void
     {
         Schema::create('crons', function (Blueprint $table) {
-            $table->id();
-            $table->foreignId('site_id')->constrained()->cascadeOnDelete();
+            $table->uuid('id')->primary();
+            $table->foreignUuid('site_id')->constrained()->cascadeOnDelete();
             $table->string('name');
             $table->string('expression', 64)->default('0 * * * *');  // cron expr
             $table->string('command');