feat(129): erli status mapping sync

Phase 129 complete:
- Add Erli pull/push status mapping tables, seeds and repositories
- Wire Erli status sync cron for inbox pull and manual-only push
- Add tabbed Erli settings UI, tests and documentation

Co-Authored-By: Claude <noreply@anthropic.com>

tests/Unit/ErliOrderMapperTest.php

@@ -5,6 +5,7 @@ namespace Tests\Unit;
 
 use App\Core\Constants\IntegrationSources;
 use App\Modules\Settings\ErliOrderMapper;
+use App\Modules\Settings\ErliPullStatusMappingRepository;
 use PHPUnit\Framework\TestCase;
 use RuntimeException;
 
@@ -51,6 +52,30 @@ final class ErliOrderMapperTest extends TestCase
         self::assertTrue($aggregate['order']['is_canceled_by_buyer']);
     }
 
+    public function testConfiguredPullMappingOverridesDefaultStatus(): void
+    {
+        $pullMappings = $this->createMock(ErliPullStatusMappingRepository::class);
+        $pullMappings
+            ->method('findMappedStatusCode')
+            ->with('purchased')
+            ->willReturn('w_realizacji');
+
+        $mapper = new ErliOrderMapper($pullMappings);
+        $aggregate = $mapper->mapInboxMessage(7, $this->message('purchased'));
+
+        self::assertIsArray($aggregate);
+        self::assertSame('w_realizacji', $aggregate['order']['status_code']);
+    }
+
+    public function testUnknownStatusFallsBackToRawCodeForDiscoveryMappingLater(): void
+    {
+        $aggregate = $this->mapper->mapInboxMessage(7, $this->message('readyToProcess'));
+
+        self::assertIsArray($aggregate);
+        self::assertSame('readytoprocess', $aggregate['order']['status_code']);
+        self::assertSame('readytoprocess', $aggregate['order']['preferences_json']['erli_status_raw']);
+    }
+
     public function testCompanyInvoiceDataDetectsInvoiceRequest(): void
     {
         $message = $this->message('purchased');