feat(service): add container label escape control to services API

Add `is_container_label_escape_enabled` boolean field to services API,
allowing users to control whether special characters in container labels
are escaped. Defaults to true (escaping enabled).

When disabled, users can use environment variables within labels.
Includes validation rules and comprehensive test coverage.

tests/Feature/ServiceContainerLabelEscapeApiTest.php

@@ -0,0 +1,75 @@
+<?php
+
+use App\Models\InstanceSettings;
+use App\Models\Project;
+use App\Models\Server;
+use App\Models\Service;
+use App\Models\StandaloneDocker;
+use App\Models\Team;
+use App\Models\User;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+
+uses(RefreshDatabase::class);
+
+beforeEach(function () {
+    InstanceSettings::create(['id' => 0, 'is_api_enabled' => true]);
+
+    $this->team = Team::factory()->create();
+    $this->user = User::factory()->create();
+    $this->team->members()->attach($this->user->id, ['role' => 'owner']);
+
+    session(['currentTeam' => $this->team]);
+
+    $this->token = $this->user->createToken('test-token', ['*']);
+    $this->bearerToken = $this->token->plainTextToken;
+
+    $this->server = Server::factory()->create(['team_id' => $this->team->id]);
+    $this->destination = StandaloneDocker::where('server_id', $this->server->id)->first();
+    $this->project = Project::factory()->create(['team_id' => $this->team->id]);
+    $this->environment = $this->project->environments()->first();
+});
+
+function serviceContainerLabelAuthHeaders($bearerToken): array
+{
+    return [
+        'Authorization' => 'Bearer '.$bearerToken,
+        'Content-Type' => 'application/json',
+    ];
+}
+
+describe('PATCH /api/v1/services/{uuid}', function () {
+    test('accepts is_container_label_escape_enabled field', function () {
+        $service = Service::factory()->create([
+            'server_id' => $this->server->id,
+            'destination_id' => $this->destination->id,
+            'destination_type' => $this->destination->getMorphClass(),
+            'environment_id' => $this->environment->id,
+        ]);
+
+        $response = $this->withHeaders(serviceContainerLabelAuthHeaders($this->bearerToken))
+            ->patchJson("/api/v1/services/{$service->uuid}", [
+                'is_container_label_escape_enabled' => false,
+            ]);
+
+        $response->assertStatus(200);
+
+        $service->refresh();
+        expect($service->is_container_label_escape_enabled)->toBeFalse();
+    });
+
+    test('rejects invalid is_container_label_escape_enabled value', function () {
+        $service = Service::factory()->create([
+            'server_id' => $this->server->id,
+            'destination_id' => $this->destination->id,
+            'destination_type' => $this->destination->getMorphClass(),
+            'environment_id' => $this->environment->id,
+        ]);
+
+        $response = $this->withHeaders(serviceContainerLabelAuthHeaders($this->bearerToken))
+            ->patchJson("/api/v1/services/{$service->uuid}", [
+                'is_container_label_escape_enabled' => 'not-a-boolean',
+            ]);
+
+        $response->assertStatus(422);
+    });
+});