Frontend v1.0.80:

El botón "📄 Exportar PDF" ahora solo es visible para admin y asesor
Los mecánicos (role === 'mechanic') pueden ver el modal de inspección pero NO pueden exportar el PDF
Backend v1.0.82 (sin cambios adicionales)
Resumen de permisos:

✅ Admin: Ver inspección + Exportar PDF + Ver historial + Inactivar
✅ Asesor: Ver inspección + Exportar PDF
❌ Mecánico: Solo ver inspección + Continuar incompletas

backend/app/main.py

@@ -1428,15 +1428,14 @@ def generate_inspection_pdf(inspection_id: int, db: Session) -> str:
     # ===== PORTADA =====
     elements.append(Spacer(1, 10*mm))
     
-    # Función helper para cargar y dimensionar logos
+    # Función helper para cargar y dimensionar logos (optimizada)
     def load_logo(logo_url, max_width_mm=45, max_height_mm=35):
         """Carga un logo desde URL y retorna objeto Image con dimensiones ajustadas"""
         if not logo_url:
             return None
         try:
-            print(f"🔍 Cargando logo desde: {logo_url}")
-            logo_resp = requests.get(logo_url, timeout=10)
-            print(f"📡 Respuesta: {logo_resp.status_code}")
+            # Reducir timeout para respuestas más rápidas
+            logo_resp = requests.get(logo_url, timeout=5)
             
             if logo_resp.status_code == 200:
                 logo_bytes = BytesIO(logo_resp.content)
@@ -1455,21 +1454,42 @@ def generate_inspection_pdf(inspection_id: int, db: Session) -> str:
                 logo_img.drawWidth = logo_width
                 logo_img.drawHeight = logo_height
                 
-                print(f"✅ Logo cargado ({logo_width/mm:.1f}mm x {logo_height/mm:.1f}mm)")
                 return logo_img
             else:
-                print(f"❌ Error HTTP: {logo_resp.status_code}")
+                print(f"❌ Error HTTP cargando logo: {logo_resp.status_code}")
         except Exception as e:
-            print(f"⚠️ Error cargando logo: {e}")
-            import traceback
-            traceback.print_exc()
+            print(f"⚠️ Error cargando logo: {str(e)[:100]}")
         return None
     
-    # Cargar ambos logos
-    company_logo = load_logo(company_logo_url, max_width_mm=50, max_height_mm=35)
-    checklist_logo = load_logo(checklist_logo_url, max_width_mm=50, max_height_mm=35)
+    # Cargar ambos logos en paralelo usando ThreadPoolExecutor
+    from concurrent.futures import ThreadPoolExecutor, as_completed
     
-    # Crear tabla con logos en los extremos
+    company_logo = None
+    checklist_logo = None
+    
+    with ThreadPoolExecutor(max_workers=2) as executor:
+        futures = {}
+        if company_logo_url:
+            futures[executor.submit(load_logo, company_logo_url, 50, 35)] = 'company'
+        if checklist_logo_url:
+            futures[executor.submit(load_logo, checklist_logo_url, 50, 35)] = 'checklist'
+        
+        for future in as_completed(futures):
+            logo_type = futures[future]
+            try:
+                result = future.result()
+                if logo_type == 'company':
+                    company_logo = result
+                    if result:
+                        print(f"✅ Logo empresa cargado")
+                elif logo_type == 'checklist':
+                    checklist_logo = result
+                    if result:
+                        print(f"✅ Logo checklist cargado")
+            except Exception as e:
+                print(f"❌ Error procesando logo {logo_type}: {e}")
+    
+    # Crear tabla con logos en los extremos (ancho total disponible ~180mm)
     logo_row = []
     
     # Logo empresa (izquierda)
@@ -1478,7 +1498,7 @@ def generate_inspection_pdf(inspection_id: int, db: Session) -> str:
     else:
         logo_row.append(Paragraph("", styles['Normal']))  # Espacio vacío
     
-    # Espaciador central
+    # Espaciador central flexible
     logo_row.append(Paragraph("", styles['Normal']))
     
     # Logo checklist (derecha)
@@ -1487,13 +1507,16 @@ def generate_inspection_pdf(inspection_id: int, db: Session) -> str:
     else:
         logo_row.append(Paragraph("", styles['Normal']))  # Espacio vacío
     
-    # Crear tabla con logos
-    logo_table = Table([logo_row], colWidths=[60*mm, 60*mm, 60*mm])
+    # Crear tabla con logos - columnas ajustadas para maximizar separación
+    # Columna 1: 55mm (logo empresa), Columna 2: 70mm (espacio), Columna 3: 55mm (logo checklist)
+    logo_table = Table([logo_row], colWidths=[55*mm, 70*mm, 55*mm])
     logo_table.setStyle(TableStyle([
         ('ALIGN', (0, 0), (0, 0), 'LEFT'),      # Logo empresa a la izquierda
         ('ALIGN', (1, 0), (1, 0), 'CENTER'),    # Centro vacío
         ('ALIGN', (2, 0), (2, 0), 'RIGHT'),     # Logo checklist a la derecha
-        ('VALIGN', (0, 0), (-1, -1), 'TOP'),
+        ('VALIGN', (0, 0), (-1, -1), 'MIDDLE'), # Alineación vertical al centro
+        # DEBUG: Agregar bordes para ver la distribución
+        # ('GRID', (0, 0), (-1, -1), 0.5, colors.red),
     ]))
     elements.append(logo_table)
     elements.append(Spacer(1, 5*mm))

frontend/package.json

@@ -1,7 +1,7 @@
 {
   "name": "checklist-frontend",
   "private": true,
-  "version": "1.0.79",
+  "version": "1.0.80",
   "type": "module",
   "scripts": {
     "dev": "vite",

frontend/src/App.jsx

@@ -3479,60 +3479,63 @@ function InspectionDetailModal({ inspection, user, onClose, onUpdate, onContinue
                 {loadingAudit ? 'Cargando...' : 'Ver Historial de Cambios'}
               </button>
             )}
-            <button
-              onClick={async () => {
-                try {
-                  const token = localStorage.getItem('token')
-                  const API_URL = import.meta.env.VITE_API_URL || ''
-                  const response = await fetch(`${API_URL}/api/inspections/${inspection.id}/pdf`, {
-                    headers: { 'Authorization': `Bearer ${token}` }
-                  })
-                  if (response.ok) {
-                    const contentType = response.headers.get('content-type')
-                    if (contentType && contentType.includes('application/pdf')) {
-                      const blob = await response.blob()
-                      const url = window.URL.createObjectURL(blob)
-                      const a = document.createElement('a')
-                      a.href = url
-                      a.download = `inspeccion_${inspection.id}_${inspection.vehicle_plate || 'sin-patente'}.pdf`
-                      document.body.appendChild(a)
-                      a.click()
-                      document.body.removeChild(a)
-                      window.URL.revokeObjectURL(url)
-                    } else {
-                      const data = await response.json()
-                      if (data.pdf_url) {
-                        const pdfRes = await fetch(data.pdf_url)
-                        if (pdfRes.ok) {
-                          const pdfBlob = await pdfRes.blob()
-                          const pdfUrl = window.URL.createObjectURL(pdfBlob)
-                          const a = document.createElement('a')
-                          a.href = pdfUrl
-                          a.download = `inspeccion_${inspection.id}_${inspection.vehicle_plate || 'sin-patente'}.pdf`
-                          document.body.appendChild(a)
-                          a.click()
-                          document.body.removeChild(a)
-                          window.URL.revokeObjectURL(pdfUrl)
-                        } else {
-                          alert('No se pudo descargar el PDF desde MinIO')
-                        }
+            {/* Botón Exportar PDF - solo para admin y asesor */}
+            {(user?.role === 'admin' || user?.role === 'asesor') && (
+              <button
+                onClick={async () => {
+                  try {
+                    const token = localStorage.getItem('token')
+                    const API_URL = import.meta.env.VITE_API_URL || ''
+                    const response = await fetch(`${API_URL}/api/inspections/${inspection.id}/pdf`, {
+                      headers: { 'Authorization': `Bearer ${token}` }
+                    })
+                    if (response.ok) {
+                      const contentType = response.headers.get('content-type')
+                      if (contentType && contentType.includes('application/pdf')) {
+                        const blob = await response.blob()
+                        const url = window.URL.createObjectURL(blob)
+                        const a = document.createElement('a')
+                        a.href = url
+                        a.download = `inspeccion_${inspection.id}_${inspection.vehicle_plate || 'sin-patente'}.pdf`
+                        document.body.appendChild(a)
+                        a.click()
+                        document.body.removeChild(a)
+                        window.URL.revokeObjectURL(url)
                       } else {
-                        alert('No se encontró la URL del PDF')
+                        const data = await response.json()
+                        if (data.pdf_url) {
+                          const pdfRes = await fetch(data.pdf_url)
+                          if (pdfRes.ok) {
+                            const pdfBlob = await pdfRes.blob()
+                            const pdfUrl = window.URL.createObjectURL(pdfBlob)
+                            const a = document.createElement('a')
+                            a.href = pdfUrl
+                            a.download = `inspeccion_${inspection.id}_${inspection.vehicle_plate || 'sin-patente'}.pdf`
+                            document.body.appendChild(a)
+                            a.click()
+                            document.body.removeChild(a)
+                            window.URL.revokeObjectURL(pdfUrl)
+                          } else {
+                            alert('No se pudo descargar el PDF desde MinIO')
+                          }
+                        } else {
+                          alert('No se encontró la URL del PDF')
+                        }
                       }
+                    } else {
+                      alert('Error al generar PDF')
                     }
-                  } else {
+                  } catch (error) {
+                    console.error('Error:', error)
                     alert('Error al generar PDF')
                   }
-                } catch (error) {
-                  console.error('Error:', error)
-                  alert('Error al generar PDF')
-                }
-              }}
-              className="px-4 py-2 bg-indigo-600 text-white rounded-lg hover:bg-indigo-700 transition flex items-center gap-2"
-            >
-              <span>📄</span>
-              Exportar PDF
-            </button>
+                }}
+                className="px-4 py-2 bg-indigo-600 text-white rounded-lg hover:bg-indigo-700 transition flex items-center gap-2"
+              >
+                <span>📄</span>
+                Exportar PDF
+              </button>
+            )}
             {user?.role === 'admin' && (
               <>
                 <button