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/views.py

@@ -14,7 +14,7 @@ from pathlib import Path
 from decimal import Decimal, InvalidOperation
 from django.contrib.auth import get_user_model
 
-from PIL import Image, UnidentifiedImageError
+from PIL import Image, ImageOps, UnidentifiedImageError
 from django.conf import settings
 from django.core.mail import EmailMessage
 from django.core.exceptions import ValidationError as DjangoValidationError
@@ -479,6 +479,7 @@ def _compress_image_for_pdf(image_field, max_width=800, quality=75):
     try:
         image_field.open('rb')
         with Image.open(image_field) as img:
+            img = ImageOps.exif_transpose(img)
             w, h = img.size
             if w * h > _COMPRESS_IMAGE_MAX_MEGAPIXELS * 1_000_000:
                 return None
@@ -508,6 +509,7 @@ def _compress_image_for_docx(image_field, max_width=800, quality=80):
     try:
         image_field.open('rb')
         with Image.open(image_field) as img:
+            img = ImageOps.exif_transpose(img)
             w, h = img.size
             if w * h > _COMPRESS_IMAGE_MAX_MEGAPIXELS * 1_000_000:
                 return None