feat: Add maintenance scripts and testing utilities

- Added password management utilities for user administration
- Added PowerShell scripts for testing attachment endpoints
- Enhanced development and testing workflow capabilities
- Completed v1.4.0 with all maintenance tools included"

test_attachments.ps1

@@ -0,0 +1,34 @@
+# Test de Attachments API
+# Ejecutar desde PowerShell
+
+# 1. Login
+$body = '{"email":"admin@aduanasoft.com","password":"admin123","tenant_slug":"aduanasoft"}'
+$login = Invoke-RestMethod -Uri "http://localhost:8000/v1/auth/login" -Method POST -Body $body -ContentType "application/json"
+
+$token = $login.data.access_token
+$tenantId = $login.data.user.tenant_id
+
+$headers = @{
+    "Authorization" = "Bearer $token"
+    "X-Tenant-ID" = $tenantId
+}
+
+Write-Host "Autenticacion exitosa" -ForegroundColor Green
+
+# 2. Listar tickets
+$tickets = Invoke-RestMethod -Uri "http://localhost:8000/v1/tickets" -Headers $headers
+$ticketId = $tickets.data[0].id
+
+Write-Host "Ticket ID obtenido: $ticketId" -ForegroundColor Green
+
+# 3. Listar attachments del ticket
+$attachments = Invoke-RestMethod -Uri "http://localhost:8000/v1/tickets/$ticketId/attachments" -Headers $headers
+
+Write-Host "Attachments listados: $($attachments.Count) encontrados" -ForegroundColor Green
+
+if ($attachments.Count -gt 0) {
+    $attachments | Format-Table id, original_filename, file_size, created_at
+}
+
+Write-Host ""
+Write-Host "TEST COMPLETADO" -ForegroundColor Cyan