fix: apply EXIF orientation to service record images in PDF/DOCX

Smartphone photos often have EXIF orientation metadata (tags 6, 8, 3)
that rotates the display but doesn't transform the pixel data. When
PDFs/DOCX embedded images without applying this metadata, they appear
rotated 90/180/270 degrees.

Use ImageOps.exif_transpose(img) before resize/convert in both
_compress_image_for_pdf() and _compress_image_for_docx() to read EXIF
orientation and transpose the actual pixel data accordingly. This is
a standard Pillow function and is a no-op for images without EXIF.

Add regression test test_compress_image_for_docx_handles_exif_orientation
to verify images with EXIF tag 0x0112 (orientation=6) are transposed.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

backend/modules/fleet/tests/test_work_order_images_endpoint.py

@@ -252,6 +252,20 @@ class WorkOrderImagesEndpointTests(TestCase):
         self.assertIsNotNone(result)
         self.assertGreater(len(result.getvalue()), 0)
 
+    def test_compress_image_for_docx_handles_exif_orientation(self):
+        exif = Image.Exif()
+        exif[0x0112] = 6
+
+        file = BytesIO()
+        Image.new('RGB', (3000, 2000), color='green').save(file, format='JPEG', quality=85, exif=exif.tobytes())
+        file.seek(0)
+        uploaded = SimpleUploadedFile('rotated-phone.jpg', file.getvalue(), content_type='image/jpeg')
+
+        result = _compress_image_for_docx(uploaded)
+
+        self.assertIsNotNone(result)
+        self.assertGreater(len(result.getvalue()), 0)
+
     def test_work_order_related_tasks_queryset_excludes_other_work_orders_for_same_vehicle(self):
         other_work_order = WorkOrder.objects.create(
             vehicle=self.vehicle,