feat: Add salvage recovery and scan logs

logs/salvage-media-ytdl-15e0d749-scan-summary.txt

@@ -0,0 +1,17 @@
+GENERIC PLEX SALVAGE SCAN
+=========================
+Source:       /Media/YTDL
+Destination:  /mnt/recovery/Media/YTDL
+Root inode:   146669570
+Dead blocks:  3418636288-4395389951
+Directories:  8
+Files seen:   11
+
+SAFE:          8 files, 360.08 KiB
+LOST:          2 files, 253.63 KiB
+ETB_LOST:      1 files, 625.69 MiB
+ETB_SURVIVES:  0 files, 0.00 B
+UNKNOWN:       0 files, 0.00 B
+OTHER:         0 entries
+
+Manifest:     /mnt/recovery/salvage-media-ytdl-15e0d749-manifest.jsonl