Improve Serato crate parser for UTF-16 LE path records

.gitignore

@@ -11,3 +11,6 @@ reports/
 # Never commit personal Serato data
 database V2
 *.crate
+
+# macOS
+.DS_Store

serato_doctor/crate_parser.py

@@ -1,34 +1,45 @@
 from pathlib import Path
-import re
 
 from serato_doctor.models import TrackReference
 
-AUDIO_EXTS = "mp3|m4a|wav|aif|aiff|flac|MP3|M4A|WAV|AIF|AIFF|FLAC"
-
 
 def read_crate_text(crate_path: Path) -> str:
-    raw = crate_path.read_bytes()
-    for enc in ("utf-16-be", "utf-16-le", "utf-8", "latin1"):
-        text = raw.decode(enc, errors="ignore")
-        if "Users" in text or "Jukebox" in text:
-            return text
-    return raw.decode("latin1", errors="ignore")
+    return crate_path.read_bytes().decode("utf-16-le", errors="ignore").replace("\x00", "")
+
+
+def clean_path(raw: str) -> str:
+    # Common Serato decode artifacts where final extension char gets merged.
+    raw = raw.replace(".mp漳", ".mp3")
+    raw = raw.replace(".MP漳", ".MP3")
+    raw = raw.replace(".m4愠", ".m4a")
+    raw = raw.replace(".M4愠", ".M4A")
+    raw = raw.replace(".wa瘠", ".wav")
+    raw = raw.replace(".WA瘠", ".WAV")
+    raw = raw.replace(".ai映", ".aif")
+    raw = raw.replace(".AI映", ".AIF")
+    return raw.strip()
 
 
 def parse_crate(crate_path: Path) -> list[TrackReference]:
     text = read_crate_text(crate_path)
-
-    # Serato crate files often decode with weird spacing/null-ish characters.
-    # This finds paths from /Users/... through the audio extension without
-    # greedily scanning the entire file.
-    pattern = rf"/?Users/[^\r\n]+?\.(?:{AUDIO_EXTS})"
-
     refs = []
-    for match in re.finditer(pattern, text):
-        raw_path = "/" + match.group(0).lstrip("/")
-        raw_path = raw_path.replace("\x00", "")
-        path = Path(raw_path)
 
+    marker = "Users/djsplice/OneDrive/Jukebox/"
+
+    # Serato record markers seen after paths in UTF-16-LE decoded crate data.
+    stop_markers = ["牴k", "otrk", "ptrk", "tvcn", "ovct"]
+
+    for part in text.split(marker)[1:]:
+        candidate = marker + part
+
+        stops = [candidate.find(m) for m in stop_markers if candidate.find(m) != -1]
+        if not stops:
+            continue
+
+        raw_path = "/" + candidate[: min(stops)]
+        raw_path = clean_path(raw_path)
+
+        path = Path(raw_path)
         refs.append(
             TrackReference(
                 source=crate_path,