Add camera-raw format support (.arw/.cr2/.dng/.raw)

Verified via exiftool against real Sony ARW, Canon CR2, and Pixel DNG
files pulled from are-nas -- same EXIF DateTimeOriginal/CreateDate
tags as JPEG, no new codepath needed.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

set_mtime_from_metadata.py

@@ -19,9 +19,10 @@ Handles, in priority order per format:
     .avi            -- exiftool's RIFF DateTimeOriginal (IDIT chunk). This is
                         the camera's own local wall-clock time with no
                         timezone info, unlike the QuickTime tags above.
-    .jpg/.jpeg/.png/.tif/.tiff/.heic/.heif
-                    -- exiftool's EXIF DateTimeOriginal. Also local wall-clock
-                       time with no timezone info.
+    .jpg/.jpeg/.png/.tif/.tiff/.heic/.heif/.arw/.cr2/.dng/.raw
+                    -- exiftool's EXIF DateTimeOriginal (the .arw/.cr2/.dng/
+                       .raw camera-raw formats carry standard EXIF too).
+                       Also local wall-clock time with no timezone info.
 
 Values with no timezone offset (AVI, EXIF, and ffprobe's bare creation_time
 fallback path is UTC-aware so it's unaffected) are interpreted using this
@@ -60,7 +61,10 @@ QUICKTIME_TAG_PRIORITY = ["com.apple.quicktime.creationdate", "creation_time"]
 QUICKTIME_EXTS = {".mov", ".mp4", ".m4v"}
 AVI_EXTS = {".avi"}
 VIDEO_EXTS = QUICKTIME_EXTS | AVI_EXTS
-EXIF_PHOTO_EXTS = {".jpg", ".jpeg", ".png", ".tif", ".tiff", ".heic", ".heif"}
+EXIF_PHOTO_EXTS = {
+    ".jpg", ".jpeg", ".png", ".tif", ".tiff", ".heic", ".heif",
+    ".arw", ".cr2", ".dng", ".raw",  # camera raw formats -- standard EXIF via exiftool
+}
 ALL_SUPPORTED_EXTS = VIDEO_EXTS | EXIF_PHOTO_EXTS
 
 # Synology (and other NAS/sync tool) internal housekeeping directories that
@@ -190,7 +194,7 @@ def main():
     parser.add_argument("files", nargs="*", type=Path, help="Media files to fix")
     parser.add_argument("--dir", type=Path, help="Recursively scan this directory for supported files instead of (or in addition to) explicit FILES")
     type_group = parser.add_mutually_exclusive_group()
-    type_group.add_argument("--only-photo", action="store_true", help="Only consider photo formats (jpg/jpeg/png/tif/tiff/heic/heif)")
+    type_group.add_argument("--only-photo", action="store_true", help="Only consider photo formats (jpg/jpeg/png/tif/tiff/heic/heif/arw/cr2/dng/raw)")
     type_group.add_argument("--only-video", action="store_true", help="Only consider video formats (mov/mp4/m4v/avi)")
     parser.add_argument("--dry-run", action="store_true", help="Show what would change without modifying anything or prompting")
     parser.add_argument("--yes", "-y", "--unattended", dest="yes", action="store_true", help="Apply changes without an interactive confirmation prompt")