fix: add PIL fallback for CR2 EXIF (piexif alone can't parse some CR2)

organize.py

@@ -196,6 +196,22 @@ def _read_cr2_exif(path: Path) -> str | None:
                 return raw_val.decode('utf-8')
         except Exception:
             pass
+
+    # Fallback: PIL can read EXIF from CR2's embedded JPEG preview
+    try:
+        from PIL import Image
+        from PIL.ExifTags import TAGS
+        img = Image.open(path)
+        raw = img._getexif()
+        img.close()
+        if raw:
+            tag_map = {v: k for k, v in TAGS.items()}
+            for tag_name in ('DateTimeOriginal', 'DateTime'):
+                tag_code = tag_map.get(tag_name)
+                if tag_code and tag_code in raw:
+                    return raw[tag_code]
+    except Exception:
+        pass
     return None